Showing posts with label virus. Show all posts
Showing posts with label virus. Show all posts

Sunday 16 February 2020

Teens Unaware Of The Dangers Of AIDS

Teens Unaware Of The Dangers Of AIDS.
The import that AIDS is having on American kids has improved greatly in brand-new years, thanks to productive drugs and prevention methods. The same cannot be said, however, for children worldwide. "Maternal-to-child carrying is down exponentially in the United States because we do a good job at preventing it," said Dr Kimberly Bates, chairman of a clinic for children and families with HIV/AIDS at Nationwide Children's Hospital in Columbus, Ohio.

In fact, the chances of a mollycoddle contracting HIV from his or her mother is now less than 1 percent in the United States, according to the US Centers for Disease Control and Prevention. Still, concerns exist. "In a subset of teens, the or slue of infections are up. We've gotten very usefulness at minimizing the stain and treating HIV as a chronic disease, but what goes away with the acceptance is some of the messaging that heightens awareness of risk factors.

Today, multitude are very unclear about what their actual risk is, especially teens". Increasing awareness of the risk of HIV, the virus that causes AIDS, is one purpose that health experts hope to attain. Across the globe, the AIDS growth has had a harsher effect on children, especially those in sub-Saharan Africa. According to the World Health Organization, about 3,4 million children worldwide had HIV at the end of 2011, with 91 percent of them living in sub-Saharan Africa.

Children with HIV/AIDS regularly acquired it from HIV-infected mothers during pregnancy, emergence or breast-feeding. Interventions that can up the odds of mother-to-child transmission of HIV aren't widely available in developing countries. And, the care that can keep the virus at bay - known as antiretroviral cure - isn't available to the majority of kids living with HIV. Only about 28 percent of children who have occasion for this treatment are getting it, according to the World Health Organization.

In the United States, however, the prospect for a child or teen with HIV is much brighter. "Every time we stop to have a discussion about HIV, the release gets better. The medications are so much simpler, and they can prevent the complications. Although we don't recognize for sure, we anticipate that most teens with HIV today will live a normal life span, and if we get to infants with HIV early, the assumption is that they'll have a regular life span". For kids, though, living with HIV still isn't easy.

And "The toughest department for most young common people is the knowledge that, no matter what, they have to be on medications for the rest of their lives. If you miss a measure of diabetes medication, your blood sugar will go up, but then once you take your medicine again, it's fine. If you slip-up HIV medication, you can become resistant". The medications also are pricey. However a federal program made imaginable by the Ryan White CARE Act helps people who can't pay their medication get help paying for it.

Wednesday 8 January 2020

Doctors Strongly Recommend That All Pregnant Women To Have A Blood Test For HIV

Doctors Strongly Recommend That All Pregnant Women To Have A Blood Test For HIV.
A babe born two-and-a-half years ago in Mississippi with HIV is the basic casing of a so-called "functional cure" of the infection, researchers announced Sunday. Standard tests can no longer spot any traces of the AIDS-causing virus even though the child has discontinued HIV medication. "We allow this is the first well-documented case of a functional cure," said look lead author Dr Deborah Persaud, associate professor of pediatrics in the class of infectious diseases at Johns Hopkins Children's Center in Baltimore. The finding was presented Sunday at the Conference on Retroviruses and Opportunistic Infections, in Atlanta.

The lass was not part of a study but, instead, the beneficiary of an unexpected and partly unplanned cycle of events that - once confirmed and replicated in a strict study - might help more children who are born with HIV or who at risk of contracting HIV from their parent eradicate the virus from their body. Normally, mothers infected with HIV take antiretroviral drugs that can almost murder the odds of the virus being transferred to the baby. If a mother doesn't be familiar with her HIV status or hasn't been treated for other reasons, the baby is given "prophylactic" drugs at birth while awaiting the results of tests to infer his or her HIV status.

This can take four to six weeks to complete. If the tests are positive, the child starts HIV drug treatment. The fuss over of the baby born in Mississippi didn't know she was HIV-positive until the time of delivery.

But in this case, both the primary and confirmatory tests on the baby were able to be completed within one day, allowing the baby to be started on HIV medicine treatment within the first 30 hours of life. "Most of our kids don't get picked up that early". As expected, the baby's "viral load" - detectable levels of HIV - decreased progressively until it was no longer detectable at 29 days of age.

Theoretically, this young gentleman (doctors aren't disclosing the gender) would have bewitched the medications for the lay of his or her life, said the researchers, who included doctors from the University of Massachusetts Medical School and the University of Mississippi Medical Center. Instead, the toddler stayed on the regimen for only 18 months before dropping out of the medical combination and discontinuing the drugs.

Ten months after stopping treatment, however, the youth was again seen by doctors who were surprised to find no HIV virus or HIV antibodies with customary tests. Ultrasensitive tests did detect infinitesimal traces of viral DNA and RNA in the blood. But the virus was not replicating - a influentially unusual occurrence given that drugs were no longer being administered, the researchers said.

Monday 6 January 2020

The USA Is Expected Outbreak Of The Virus Chikungunya (CHIKV)

The USA Is Expected Outbreak Of The Virus Chikungunya (CHIKV).
It's reachable that a crucial mosquito-borne virus - with no known vaccine or remedying - could migrate from Central Africa and Southeast Asia to the United States within a year, redesigned research suggests. The chances of a US outbreak of the Chikungunya virus (CHIKV) varies by period and geography, with those regions typified by longer stretches of warm weather facing longer periods of favourable risk, according to the researchers' new computer model. "The only way for this contagion to be transmitted is if a mosquito bites an infected human and a few days after that it bites a healthy individual, transmitting the virus," said contemplation lead author Diego Ruiz-Moreno, a postdoctoral associate in the jurisdiction of ecology and evolutionary biology at Cornell University in Ithaca, NY "The repetition of this series of events can lead to a disease outbreak".

And that, Ruiz-Moreno said, is where weather comes into the picture, with computer simulations revealing that the gamble of an outbreak rises when temperatures, and therefore mosquito populations, rise. The cramming analyzed possible outbreak scenarios in three US locales. In 2013, the New York department is set to face its highest risk for a CHIKV outbreak during the steamed up months of August and September, the analysis suggests.

By contrast, Atlanta's highest-risk period was identified as longer, beginning in June and sustained through September. Miami's consistent warm weather means the region faces a higher chance all year. "Warmer weather increases the length of the period of high risk," Ruiz-Moreno said. "This is outstandingly worrisome if we think of the effects of climate change over regular temperatures in the near future".

Ruiz-Moreno discussed his team's research - funded in part by the US National Institute for Food and Agriculture - in a brand-new issue of the journal PLoS Neglected Tropical Diseases. CHIKV was commencement identified in Tanzania in 1953, the authors noted, and the severe combined and muscle pain, fever, fatigue, headaches, rashes and nausea that can result are sometimes not with it with symptoms of dengue fever.

Tuesday 10 December 2019

Vaccination Against H1N1 Flu Also Protects From The 1918 Spanish Influenza

Vaccination Against H1N1 Flu Also Protects From The 1918 Spanish Influenza.
The H1N1 influenza vaccine distributed in 2009 also appears to shield against the 1918 Spanish influenza virus killed more than 50 million relations nearly a century ago, creative scrutinization in mice reveals. The finding stems from work funded by the US National Institute of Allergy and Infectious Diseases, party of the National Institutes of Health, which examined the vaccine's efficacy in influenza haven among mice.

And "While the reconstruction of the formerly departed Spanish influenza virus was important in helping study other pandemic viruses, it raised some concerns about an casual lab release or its use as a bioterrorist agent," study author Adolfo Garcia-Sastre, a professor of microbiology at the Mount Sinai School of Medicine in New York City, said in a private school scuttlebutt release. "Our research shows that the 2009 H1N1 influenza vaccine protects against the Spanish influenza virus, an mighty breakthrough in preventing another devastating pandemic like 1918". Garcia-Sastre and his colleagues discharge their findings in the current issue of Nature Communications.

Tuesday 3 December 2019

Scientists Have Submitted A New Drug To Treat HIV

Scientists Have Submitted A New Drug To Treat HIV.
Scientists are reporting ancient but optimistic results from a new drug that blocks HIV as it attempts to invade considerate cells. The approach differs from most current antiretroviral therapy, which tries to restrain the virus only after it has gained entry to cells. The medication, called VIR-576 for now, is still in the primeval phases of development.

But researchers say that if it is successful, it might also circumvent the drug resistance that can subvert standard therapy, according to a report published Dec 22 2010 in Science Translational Medicine. The experimental approach is an attractive one for a number of reasons, said Dr Michael Horberg, head of HIV/AIDS for Kaiser Permanente in Santa Clara, California. "Theoretically it should have fewer lesser effects and indeed had minimal adverse events in this study and there's probably less of a chance of changing in developing resistance to medication," said Horberg, who was not involved in the study.

Viruses replicate inside cells and scientists have extensive known that this is when they tend to mutate - potentially developing new ways to stand up drugs. "It's generally accepted that it's harder for a virus to mutate surface cell walls".

The new drug focuses on HIV at this pre-invasion stage. "VIR-576 targets a neighbourhood of the virus that is different from that targeted by all other HIV-1 inhibitors," explained study co-author Frank Kirchhoff, a professor at the Institute of Molecular Virology, University Hospital of Ulm in Ulm, Germany, who, along with several other researchers, holds a evident on the unfamiliar medication. The target is the gp41 fusion peptide of HIV, the "sticky" end of the virus's outer membrane, which "shoots get off on a 'harpoon'" into the body's cells, the authors said.

Tuesday 20 February 2018

Us Scientists Are Studying New Virus H7N9

Us Scientists Are Studying New Virus H7N9.
The H7N9 bird flu virus does not yet have the facility to without even trying infect people, a new study indicates. The findings nullify some previous research suggesting that H7N9 poses an imminent omen of causing a global pandemic. The H7N9 virus killed several dozen people in China earlier this year. Analyses of virus samples from that outbreak suggest that H7N9 is still mainly adapted for infecting birds, not people, according to scientists at the Scripps Research Institute in La Jolla, California The scrutiny is published in the Dec 6, 2013 exit of the scrapbook Science.

Friday 24 November 2017

Camels Spread The Dangerous Virus

Camels Spread The Dangerous Virus.
Scientists authority they have the first reliable proof that a deadly respiratory virus in the Middle East infects camels in addition to humans. The judgement may help researchers find ways to control the spread of the virus. Using gene sequencing, the study team found that three camels from a site where two people contracted Middle East respiratory syndrome coronavirus (MERS) were also infected with the virus. The place was a measly livestock barn in Qatar.

In October, 2013, the 61-year-old barn owner was diagnosed with MERS, followed by a 23-year-old manservant who worked at the barn. Within a week of the barn owner's diagnosis, samples were at ease from 14 dromedary camels at the barn. The samples were sent to laboratories in the Netherlands for genetic judgement and antibody testing. The genetic analyses confirmed the vicinity of MERS in three camels.

Saturday 2 September 2017

Gene Therapy Is Promising For The Treatment Of HIV

Gene Therapy Is Promising For The Treatment Of HIV.
Researchers surface they've moved a footstep closer to treating HIV patients with gene remedy that could potentially one day keep the AIDS-causing virus at bay. The study, published in the June 16 outgoing of the journal Science Translational Medicine, only looked at one step of the gene psychotherapy process, and there's no guarantee that genetically manipulating a patient's own cells will be successor or work better than existing drug therapies. Still, "we demonstrated that we could make this happen," said learn lead author David L DiGiusto, a biologist and immunologist at City of Hope, a medical centre and research center in Duarte, Calif.

And the research took place in people, not in investigation tubes. Scientists are considering gene therapy as a treatment for a variety of diseases, including cancer. One make advances involves inserting engineered genes into the body to change its response to illness. In the redesigned study, researchers genetically manipulated blood cells to resist HIV and inserted them into four HIV-positive patients who had lymphoma, a blood cancer.

The patients' strong blood cells had been stored earlier and were being transplanted to premium the lymphoma. Ideally, the cells would multiply and fight off HIV infection. In that case, "the virus has nowhere to grow, no style to expand in the patient". At this ahead point in the research process, however, the goal was to see if the implanted cells would survive. They did, extant in the bloodstreams of the subjects for two years.

Saturday 8 July 2017

Flu Vaccines Approved For Next Winter, Will Protect Against Three Strains Of Influenza, Including H1N1

Flu Vaccines Approved For Next Winter, Will Protect Against Three Strains Of Influenza, Including H1N1.
The flu vaccines approved for the 2010-11 age care for against three strains of influenza, including the 2009 H1N1 pandemic swine flu strain, the United States Food and Drug Administration has announced. Because the 2009 H1N1 virus emerged after opus had started on up to date year's seasonal flu vaccine, two distinct vaccines were needed newest season to protect against seasonal flu and the 2009 H1N1 virus.

This year, persons will require only one vaccine, the FDA said. Each year, experts from the World Health Organization, the FDA, the US Centers for Disease Control and Prevention and other institutions analyze flu virus samples and patterns at ease worldwide in scale to govern which strains are most likely to cause illness during the upcoming season.

The vaccines for the 2010-11 flu occasion contain the following strains:

* A/California/7/09 (H1N1)-like virus (pandemic (H1N1) 2009 influenza virus),

Friday 14 April 2017

New Immune Reserves To Fight Against HIV

New Immune Reserves To Fight Against HIV.
Scientists reveal they've discovered conceivable new weapons in the war against HIV: antibody "soldiers" in the inoculated system that might prevent the AIDS virus from invading human cells. According to the researchers, these newly found antibodies lock with and neutralize more than 90 percent of a group of HIV-1 strains, involving all notable genetic subtypes of the virus. That breadth of activity could potentially move research closer toward advancement of an HIV vaccine, although that goal still remains years away, at best, experts say.

The findings "show that the exempt system can make very potent antibodies against HIV," said Dr John Mascola, a vaccine researcher and co-author of two imaginative studies published online July 8 in the record Science. "We are trying to understand why they exist in some patients and not others. That will hand us in the vaccine design process".

Antibodies are warriors in the body's immune system that utilize to prevent infection. "Neutralizing" antibodies bind to germs and try to disable them, explained Ralph Pantophlet, an immunologist and aide-de-camp professor at Simon Fraser University in Burnaby, British Columbia, Canada.

Sunday 9 October 2016

New Studies Of Treatment Of Herpes Zoster

New Studies Of Treatment Of Herpes Zoster.
The commonness of a rigorous condition known as shingles is increasing in the United States, but new research says the chickenpox vaccine isn't to blame. Shingles is caused by the same virus that causes chickenpox, the varicella zoster virus. Researchers have theorized that widespread chickenpox vaccination since the 1990s might have given shingles an unintended boost. But that theory didn't reject out in a scrutinize of nearly 3 million older adults.

And "The chickenpox vaccine program was introduced in 1996, so we looked at the extent of shingles from the ancient '90s to 2010, and found that shingles was already increasing before the vaccine program started," said examine maker Dr Craig Hales, a medical epidemiologist at the US Centers for Disease Control and Prevention. "And as immunization coverage in children reached 90 percent, shingles continued at the same rate". Once someone has had chickenpox, the varicella zoster virus stays in the body.

It lies motionless for years, often even for decades, but then something happens to reactivate it. When it's reactivated, it's called herpes zoster or shingles. Exposure to children with chickenpox boosts adults' exemption to the virus. But experts wondered if vaccinating a uncut siring of children against chickenpox might put on the charge of shingles in older people, who have already been exposed to the chickenpox virus.

And "Our immunity of course wanes over time, and once it wanes enough, that's when the virus can reactivate. So, if we're never exposed to children with chickenpox, would we run out of that normal immunity boost?" To answer this question, Hales and his colleagues reviewed Medicare claims statistics from 1992 to 2010 that included about 2,8 million the crowd over the age of 65. They found that annual rates of shingles increased 39 percent over the 18-year review period.

However, they didn't find a statistically significant change in the rate after the introduction of the chickenpox vaccine. They also found that the reprimand of shingles didn't vary from state to state where there were different rates of chickenpox vaccine coverage. These findings, published in the Dec 3, 2013 publication of the Annals of Internal Medicine, suggest the chickenpox vaccine isn't linked to the increase in shingles, according to Hales.

Monday 7 March 2016

Norovirus Infects The US

Norovirus Infects The US.
Norovirus, the monstrous stomach bug that's sickened countless sail ship passengers, also wreaks havoc on land. Each year, many children descend upon their doctor or an emergency room due to severe vomiting and diarrhea caused by norovirus, according to unheard of research from the US Centers for Disease Control and Prevention. The CDC announcement estimated the cost of those illnesses at more than $273 million annually. "The main point we found was that the healthiness care burden in children under 5 years old from norovirus was surprisingly great, causing nearly 1 million medical visits per year," said the study's create author, Daniel Payne, an epidemiologist with the CDC. "The secondly point was that, for the first time, norovirus salubrity care visits have exceeded those for rotavirus".

Rotavirus is a common gastrointestinal illness for which there is now a vaccine. It's mighty to note that the rate of norovirus hasn't been increasing in young children. The rationale norovirus is now responsible for more health care visits than rotavirus is that the incidence of rotavirus infection is dropping because the rotavirus vaccine is working well.

Results of the mull over are published in the March 21, 2013 affair of the New England Journal of Medicine. Norovirus is a viral illness that can affect anyone, according to the CDC. It commonly causes nausea, diarrhea, vomiting and gut cramps.

Most people pull through from a norovirus infection in a day or two, but the very young and the very old - as well as those with underlying medical conditions - have a greater peril of becoming dehydrated when they're sick with norovirus. The virus is very contagious. Payne said it takes as few as 18 norovirus particles to infect someone. By comparison, a flu virus may function between 100 and 1000 virus particles to cause infection.

Payne said ancestors who have been infected can also detain spreading the virus even after they feel better. Norovirus is difficult to determine definitively. The test that can confirm the virus is costly and time consuming so there have not been good information on how many children are affected by it each year.

To get a better idea of how prevalent this infection really is, the researchers tranquil samples from hospitals, emergency departments and outpatient clinics from children under 5 years antique who had acute gastrointestinal symptoms. The children were from three US counties: Monroe County, NY; Davidson County, TN; and Hamilton County, OH.

Wednesday 11 November 2015

Increasing Of Resistance Of H1N1 Virus To Antibiotics

Increasing Of Resistance Of H1N1 Virus To Antibiotics.
Certain influenza virus strains are developing increasing painkiller intransigence and greater ability to spread, a untrained study warns. American and Canadian researchers confirmed that resistance to the two approved classes of antiviral drugs can become manifest in several ways and said this dual resistance has been on the rise over the late three years. The team analyzed 28 seasonal H1N1 influenza viruses that were close in five countries from 2008 to 2010 and were resistant to both M2 blockers (adamantanes) and neuraminidase inhibitors (NAIs), including oseltamivir and zanamivir.

The researchers found that additional antiviral refusal can promptly develop in a previously single-resistant influenza virus through mutation, drug response, or gene stock market with another virus. The study also found that the proportion of tested viruses with dual resistance increased from 00,6 percent in 2007-08 to 1,5 percent in 2008-09 and 28 percent in 2009-10.

The findings are published online Dec 7, 2010 in progress of silk screen publication Jan 1, 2011 in the Journal of Infectious Diseases. "Because only two classes of antiviral agents are approved, the detection of viruses with obstruction to drugs in both classes is concerning," inquiry author Dr Larisa Gubareva, of the US Centers for Disease Control and Prevention, said in a annal news release.

Tuesday 29 September 2015

Undetectable HIV Virus

Undetectable HIV Virus.
Fortunata Kasege was just 22 years past it and several months preggers when she and her husband came to the United States from Tanzania in 1997. She was hoping to earn a college step in journalism before returning home. Because she'd been in the process of moving from Africa to the United States, Kasege had not yet had a prenatal checkup, so she went to a clinic soon after she arrived. "I was very overwrought to be in the US, but after that crave flight, I wanted to know that everything was OK.

I went to the clinic with mixed emotions - lively about the baby, but worried, too," but she left the appointment feeling better about the baby and without worries. That was the continue time she'd have such a carefree feeling during her pregnancy. Soon after her appointment, the clinic asked her to come back in: Her blood evaluate had come back positive for HIV. "I was devastated because of the baby. I don't call to mind hearing anything they said about saving the baby right away.

It was a lot to interpret in. I was crying and scared that I was going to die. I was feeling all kinds of emotions, and I cogitation my baby would die, too. I was screaming a lot, and for ever someone told me, 'We promise we have medicine you can take and it can save the baby and you, too. Kasege started therapy right away with zidovudine, which is more commonly called AZT. It's a medicament that reduces the amount of virus in the body, known as the viral load, and that helps bust the chances of the baby getting the mother's infection.

Monday 30 March 2015

How Many Different Types Of Rhinoviruses

How Many Different Types Of Rhinoviruses.
Though it's never been scientifically confirmed, ordinary sageness has it that winter is the season of sniffles. Now, new animal enquire seems to back up that idea. It suggests that as internal body temperatures fall after exposure to cold air, so too does the safe system's ability to beat back the rhinovirus that causes the common cold. "It has been covet known that the rhinovirus replicates better at the cooler temperature, around 33 Celsius (91 Fahrenheit), compared to the quintessence body temperature of 37 Celsius (99 Fahrenheit)," said study co-author Akiko Iwasaki, a professor of immunobiology at Yale University School of Medicine.

And "But the ground for this deadening temperature preference for virus replication was unknown. Much of the focus on this question has been on the virus itself. However, virus replication machinery itself workings well at both temperatures, leaving the question unanswered. We in use mouse airway cells as a model to study this question and found that at the cooler temperature found in the nose, the swarm immune system was unable to induce defense signals to block virus replication".

The researchers argue their findings in the current issue of the Proceedings of the National Academy of Sciences. To traverse the potential relationship between internal body temperatures and the ability to fend off a virus, the research rig incubated mouse cells in two different temperature settings. One group of cells was incubated at 37 C (99 F) to impressionist the core temperature found in the lungs, and the other at 33 C (91 F) to mirror the temperature of the nose.

Thursday 15 May 2014

The 2009 H1N1 Virus Is Genetically Changed Over The Past 1,5 Years

The 2009 H1N1 Virus Is Genetically Changed Over The Past 1,5 Years.
Although the pandemic H1N1 "swine" flu that emerged terminal appear has stayed genetically unwavering in humans, researchers in Asia say the virus has undergone genetic changes in pigs during the model year and a half. The fear is that these genetic changes, or reassortments, could forth a more virulent bug. "The particular reassortment we found is not itself likely to be of major gentle health risk, but it is an indication of what may be occurring on a wider scale, undetected," said Malik Peiris, an influenza top-notch and co-author of a paper published in the June 18 issue of Science. "Other reassortments may occur, some of which predicate greater risks".

The findings underscore the importance of monitoring how the influenza virus behaves in pigs, said Peiris, who is chairman and professor of microbiology at the University of Hong Kong and methodical director of the university's Pasteur Research Center. "Obviously, there's a lot of developing going on and whenever you see some unstable situation, there's the potential for something new to evolve that could be dangerous," added Dr John Treanor, professor of medicine and of microbiology and immunology at the University of Rochester Medical Center in New York.

Monday 26 August 2013

5-10 cases of encephalitis among children registered in the usa annually

5-10 cases of encephalitis among children registered in the usa annually.
Although still rare, the very weighty illness known as Eastern equine encephalitis may be affecting more community than before. In a recent reassessment of two epidemics of Eastern equine encephalitis since the mid-2000s, researchers found 15 cases of the mosquito-borne infirmity among children in Massachusetts and New Hampshire uae pharmacies + duramale. Normally, the US Centers for Disease Control and Prevention records about five to 10 cases a year nationwide.

And "This virus is rare, but it's to each the world's most perilous viruses, and it's in your own backyard," said leash review article creator Dr Asim Ahmed, an contagious disease specialist at Children's Hospital Boston. In 2012 alone, Massachusetts had seven documented cases of Eastern equine encephalitis, which is the highest count of infections reported since 1956. What's more, the in the first place woman case ever in Vermont was reported in 2012.

And, disreputable health surveillance indicates that the virus that causes Eastern equine encephalitis may now have traveled as far north as Maine and Nova Scotia, Canada. Results of the examination are published in the February publication of the dossier Emerging Infectious Diseases.

Ahmed said that better detection of the virus is at least corner of the reason for the increasing numbers of citizenry diagnosed with the disease, but he doesn't believe that better testing accounts for all the green cases. "There's a sense that the activity of the virus has increased. People are living closer to habitats of mosquitoes in nature, and extensive warming is allowing mosquitoes to be full longer. Most mosquitoes grow in warmer weather," Ahmed said.