Sentences with phrase «of circulating virus»

The other major benefit would be preventing the spread of HIV, because the antiretroviral drugs rapidly reduce the amount of circulating virus.

Flu vaccines work by introducing a killed version of circulating virus strains, which trains the body's immune system to recognize and attack similar invaders in the future.

I figure he's powering up his immune system with vitamin C to fight off all of those circulating viruses.

Not exact matches

«If some of these islands lose their capacity to do mosquito control, and the destruction from the storms creates opportunities for larger mosquito transmission,» Weaver said, we might see an uptick of the mosquito - borne diseases that circulate there, like dengue (which could spread beyond the Caribbean's borders as people travel to and from the islands, carrying the viruses with them).

This is especially true during the winter, when many of the viruses that cause colds are circulating in larger numbers.

Our surveillance activities show we are currently seeing a great deal of the H1N1 virus circulating, similar to 2009.»

Previously, Derek Danahy of the University of Iowa and colleagues showed that sepsis disrupts the immune system by reducing the amount and function of memory T cells that circulate throughout the body, recognizing and attacking specific bacteria, viruses, or cancer cells.

«There were a couple of these in the vaccine strain the past two seasons that wound up making it a little bit different from the actual circulating virus strain.»

The common sense things are avoid contact with people who are currently sick; wash your hands or use alcohol - based disinfectants frequently; avoid contact in particular with people who may have just traveled to parts of the world where we know the virus is circulating; cough or sneeze into your sleeve, not your hand.

«We were able to explain that very few mutations are needed for the hemagglutinin of the currently circulating H5N1 viruses to become a hemagglutinin that supports respiratory droplet transmission in ferrets,» he says.

The new flu, which has elements of pig, bird and human flu viruses in it, has been circulating for at least a month in Mexico.

The best one of these also reduced the amount of virus circulating in the blood of Zika - infected mice.

Lederman, who says he's «obsessed» with Jenner and has been working on a biography of the scientist for 20 years, is convinced that Jenner's original vaccine, now named vaccinia, was derived from a virus circulating in horses, not cows, as folklore has it.

The study also confirms that the «H1» hemagluttinin protein of the new virus derives from the classical swine H1N1 strain, which shares a close common ancestor with the human H1N1 strain circulating before 1957 and several lines of evidence show that older people exposed to that virus may have some immunity to the new H1N1.

After 1919, the descendants of the H1N1 virus continue to circulate and cause seasonal flu outbreaks in humans — and pigs.

«A case in point is the China - Taiwan H7N9 outbreak, which was caused by a virus made of genetic segments previously circulating in chickens in China and ducks in Korea,» the authors note.

They tested a strain of Zika virus currently circulating in human populations in the Americas and another from Africa, which is the original strain identified in 1947.

That's because there are multiple strains of flu viruses circulating at any one time, said Dr. William Schaffner, an infectious - disease specialist at Vanderbilt University Medical Center in Nashville.

Noting the «relative lack of surveillance for swine influenza viruses,» the authors suggest, «this virus might have been circulating undetected among swine herds somewhere in the world.»

«It was not known whether any of these vaccines could provide protection against the new outbreak West African Makona strain of Ebola Zaire currently circulating in Guinea,» said John Eldridge, Chief Scientific Officer - Vaccines at Profectus Biosciences, Inc. «Our findings show that our candidate vaccines provided complete, single dose protection from a lethal amount of the Makona strain of Ebola virus.»

«We found that in each of the regions we could analyze, Zika virus circulated undetected for many months, up to a year or longer, before the first locally transmitted cases were reported,» says Bronwyn MacInnis, an infectious disease geneticist at the Broad Institute, in Cambridge, Mass. «This means the outbreak in these regions was under way much earlier than previously thought.»

And some of those mutations were the same as ones found in flu viruses circulating around the world a few years later, evolutionary virologist Jesse Bloom of the Fred Hutchinson Cancer Research Center in Seattle and colleagues discovered.

The assay offers rapid, specific, sensitive, and inexpensive detection of the Asian - lineage Zika virus strain that is currently circulating in the Western hemisphere, and can also detect the African - lineage Zika virus strain using separate, specific primers.

Human placental cell line Jeg - 3 can be readily infected by a circulating strain of Zika virus (left panel) and completely protected by treatment with nanchangmycin (right panel).

«The matching process is not a perfect science, therefore, in some flu seasons, the vaccine available in the fall is not a good match for the circulating virus strains and is less effective,» said senior author David Weiner, Ph.D., Executive Vice President and Director of the Vaccine and Immune Therapy Center at The Wistar Institute.

High - risk areas include more than half of Latin America — where the virus is now circulating — as well as parts of South and Southeast Asia, Northern Australia, and a broad swath of Africa around the equator.

But the 263 known viruses that circulate in humans represent less than 0.1 percent of the viruses suspected to be lurking out there that could infect people, researchers report in the Feb. 23 Science.

A small number of people infected with HIV produce antibodies with an amazing effect: Not only are the antibodies directed against the own virus strain, but also against different sub-types of HIV that circulate worldwide.

Those annual shots remain the best means of protection, but they must be manufactured months before flu season starts, based on a best educated guess of what strains of the virus will be circulating.

As the centenary of the great flu epidemic looms, we are right to be pessimistic — especially with H7N9 bird flu virus quietly circulating in China

Today's flu vaccines make the immune system produce antibodies that recognise structures on the surface of the virus to prevent infection with the most prevalent circulating strains.

And there are new creative approaches: One research group is trying to make a kind of super shot by anticipating every possible mutation a circulating virus might undergo.

In any given season, the effectiveness of the vaccine depends on how good a match there is between the viruses used in the drug's production and the strains that are actually circulating that year.

While only a few strains of flu virus circulate worldwide in a typical year, dozens more may exist.

Despite rigorous modeling practices, the virus in the vaccine occasionally doesn't match the circulating strain of influenza.

If you remember, too, that H1N1 is originally a human virus, it was given to pigs by us, and it still circulates, a different variant of it obviously, still circulates in people.

But once the wild virus stops circulating — as officials hope will happen in a few years — OPV is left as the only source of infection.

Killing monkeys ends up harming humans as well, says Jùlio Bicca - Marques, a primatologist at the Pontifical Catholic University of Rio Grande do Sul in Porto Alegre, Brazil: «The death of monkeys from yellow fever is the first warning that the virus is circulating.»

The study, published online in the Journal of Virology, also highlights the importance of flu virus surveillance — conducting studies like Topham's to see how the flu is changing, what flu mutations are circulating in humans and animals, and how those mutations affect virus function.

One of the lessons was that there may be a fair amount of cross-protective immunity in the human population to a number of the viruses currently circulating in swine, some of which were introduced into pigs from people in the past.

A new variant of an influenza virus that circulates in pigs has been jumping occasionally into people, providing a surprisingly early opportunity for public health officials to test out some of the lessons learned from the 2009 H1N1 pandemic.

Early in their study, the team noticed differences between the expected 3BNC117 abundance in humans over time, given its half - life, and the actual abundance, a discrepancy hinting that some of the antibodies may be targeting not just circulating virus particles but HIV - infected cells as well.

Furthermore, it makes it possible to look for these mutations in H5N1 viruses circulating in the wild, to provide an early warning of the emergence of viruses that might transmit among humans.

Sales of pork plunged in 2009 when the new H1N1 was identified as swine flu, a reference to the fact it was comprised mainly of genes from flu viruses that circulate in pigs.

So if this virus meets up with the human H1N1 that's a little more transmissible, and it can really just become part of the seasonal flu varieties that we already have circulating everywhere.

So H1N1 in itself is a, you know, broad category of viruses that circulate in humans, even now; they are not as fearsome as the original strain when it first emerged.

«We have submitted a request to the European Virus Archive to obtain the Asian lineage of Zika virus circulating in the AmerVirus Archive to obtain the Asian lineage of Zika virus circulating in the Amervirus circulating in the Americas.

In an initial clinical trial involving a handful of people with HIV, levels of the virus circulating in the blood decreased — becoming undetectable in one person.

For the new study, researchers in Diamond's laboratory, led by first author Helen Lazear, PhD, now at the University of North Carolina at Chapel Hill, tested five strains of the Zika virus in the mice: the original strain acquired from Uganda in 1947; three strains that circulated in Senegal in the 1980s; and the French Polynesian strain, which caused infections in 2013 and is nearly identical to the strain causing the current outbreak.

He has long advocated global cooperation in the surveillance of circulating flu viruses to spot emerging new strains so public health officials could plan a response and drug companies could get a head start in making vaccines.