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Health News Results - 547

Who Will and Who Won't Get the Flu?

THURSDAY, June 14, 2018 (HealthDay News) -- Doctors can't yet predict if someone exposed to the flu will become sick. But such predictions may be getting closer to reality, new research hints.

Researchers at Stanford University School of Medicine say they've identified a "biomarker" that indicates a person's susceptibility to flu viruses.

"We've been after this for about fou...

Humidity Won't Hamper Spread of Flu Virus

THURSDAY, June 7, 2018 (HealthDay News) -- Humidity doesn't hinder the ability of flu viruses to infect people, claims a new study that challenges a long-held belief that the viruses become less active in moist conditions.

The researchers found that mucus and other airway secretions expelled during coughs or sneezes protect flu viruses when they're airborne, regardless of humidity lev...

Human Trials Set for Experimental HIV Vaccine

WEDNESDAY, June 6, 2018 (HealthDay News) -- An experimental HIV vaccine protected animals from dozens of strains of HIV. And a human trial of the vaccine is expected to begin in the second half of 2019, according to U.S. researchers.

The vaccine targets a vulnerable site on HIV -- the virus that causes AIDS -- and triggered antibody production in mice, guinea pigs and monkeys, accordi...

Could New Pig Virus Pose Threat to People?

WEDNESDAY, May 16, 2018 (HealthDay News) -- A new virus found in pigs may pose a threat to people, new research suggests.

Researchers found the virus was able to infect cultured human cells and cells of other species in a lab. The discovery is raising concerns about a potentially dangerous outbreak in the United States.

The pig virus, known as Porcine deltacoronavirus, was ...

Scientists Are Targeting the Common Cold

TUESDAY, May 15, 2018 (HealthDay News) -- British researchers have developed a molecule they claim could make colds a thing of the past.

In lab tests, this molecule blocked viruses that cause colds and prevented them from taking control of human cells.

"The common cold is an inconvenience for most of us, but can cause serious complications in people with conditions like asth...

Opioid Crisis Means More Newborns With Hepatitis C, But Few Get Tested

WEDNESDAY, May 2, 2018 (HealthDay News) -- Due to the U.S. opioid epidemic, hepatitis C is up among pregnant women, raising the risk for mother-to-child transmission of the virus, a new study reveals.

Hepatitis C can be contracted via dirty needles used by opioid addicts.

But just a fraction of newborns exposed to hepatitis C in the womb are screened for the liver-harming in...

Zika May Linger in Semen for Shorter Period Than Thought: Study

WEDNESDAY, April 11, 2018 (HealthDay News) -- Guidelines in place for protecting against the sexual transmission of Zika virus need to be re-evaluated, based on a new study from the U.S. Centers for Disease Control and Prevention.

The CDC currently recommends that men who have traveled to a Zika-active region either use condoms or abstain from sex for at least 6 months.

But ...

Too Few Baby Boomers Get Hepatitis C Screening

THURSDAY, March 29, 2018 (HealthDay News) -- Despite recommendations, only about one in 10 U.S. baby boomers has been screened for hepatitis C virus (HCV), a new study reveals.

Hepatitis C is a contagious virus that causes nearly half of the cases of liver cancer in the United States. Health officials estimate that about one in 30 Americans born between 1945 and 1965 (the baby boom g...

Detecting Ebola Before Symptoms Show Up

WEDNESDAY, March 28, 2018 (HealthDay News) -- An immune system response may reveal presence of the deadly Ebola virus before symptoms appear, researchers report.

Currently, there's no way to diagnose Ebola until symptoms show up, which can occur anytime between 2 and 21 days after exposure to the virus, the researchers explained. But by the time symptoms appear, the disease is already...

When Is a Sick Fellow Flier a Health Risk to You?

MONDAY, March 19, 2018 (HealthDay News) -- If you worry about catching a nasty infection when you fly, a new study suggests your risk boils down to exactly how close you are to that sick passenger.

A row in front, a row in back, a couple of seats to the side, and your chances of getting sick jump, researchers report.

"Passengers should not, however, worry about getting sick ...

Young Men Face Higher Risk for Rare Flu Complication

THURSDAY, March 8, 2018 (HealthDay News) -- Young men recovering from the flu should be aware of a side effect that causes nerve damage, a health expert warns.

To combat the flu virus, your immune system produces antibodies. In rare cases, these antibodies also attack myelin, which is the protective sheath around the nerves, explained Dr. Sheetal Shroff, a neurologist with Houston Me...

Mosquitoes Spreading Zika Virus in Parts of U.S.: CDC

THURSDAY, March 8, 2018 (HealthDay News) -- Zika infections are on the rise in parts of the United States where mosquitoes spread the virus, according to the U.S. Centers for Disease Control and Prevention.

The CDC reported 5,168 cases of Zika-related illness in 2016.

Of those cases in 50 states and Washington, D.C., more than 90 percent were in people who had visited Zika-r...

Best Way to Fight Off Norovirus: Wash Your Hands

THURSDAY, March 8, 2018 (HealthDay News) -- Washing your hands often and thoroughly is the best way to protect yourself if you're caught in a norovirus outbreak, researchers say.

Norovirus is a stomach bug that causes vomiting and diarrhea. Outbreaks can crop up anywhere and anytime. However, they often occur in densely populated spots with large common areas -- cruise ships, vacation...

Why the Flu Makes You Feel So Miserable

TUESDAY, Feb. 27, 2018 (HealthDay News) -- If you're unlucky enough to come down with the flu, you can blame your own body for your fever, cough, muscle aches and head-to-toe distress, experts say.

Most of influenza's misery is caused by the human body itself, or more precisely the immune system's response to the virus.

"Many of the things that feel bad are the body's attemp...

Who Gets Unneeded Antibiotics Most Often?

MONDAY, Feb. 12, 2018 (HealthDay News) -- Some patients are more likely than others to get antibiotics they don't need, new research shows.

White adults and children, along with those who had private insurance and lived in urban areas, were more likely to receive a prescription for an antibiotic for common conditions caused by viruses, the researchers said.

Antibiotics only...

More Norovirus Infections at Olympics in South Korea

THURSDAY, Feb. 8, 2018 (HealthDay News) -- With the Winter Olympics set to start Friday, South Korean officials are scrambling to find the source of a nasty stomach infection called norovirus that has sickened 128 people so far.

South Korean health officials said Thursday that the new cases included members of the Pyeongchang Olympics Organizing Committee, as well as on-site personnel...

Are Germs Falling From the Sky?

THURSDAY, Feb. 8, 2018 (HealthDay News) -- As if you weren't worried enough about the germs on surfaces around you, new research suggests that viruses and bacteria are literally dropping down on your head.

Scientists report that large numbers of all manner of germs circulate in, and fall from, the Earth's atmosphere. Not only that, the virus that lands on you may have traveled from an...

It's a Century Since the 1918 Flu Pandemic - Could It Happen Again?

WEDNESDAY, Feb. 7, 2018 (HealthDay News) -- One hundred years ago, the deadliest influenza pandemic of all time made a ravaging march across the globe.

The "Spanish" flu of 1918-19 infected an estimated one-third of the world's population and killed between 50 million and 100 million people, modern epidemiologists estimate.

That raises the inevitable question as the United S...

Got a Pet Rat? Watch Out for This Scary New Virus

MONDAY, Feb. 5, 2018 (HealthDay News) -- Your pet rat could make you very sick by transmitting a virus that's newly emerged in North America, U.S. health officials warn.

Seoul virus is a rat-borne hantavirus that typically causes symptoms that resemble the flu -- fever, headache, muscle pain. In rare cases infection can lead to hospitalization with hemorrhagic fever and kidney failure...

Weak Vaccine Making Flu Season Even Tougher, CDC Says

FRIDAY, Feb. 2, 2018 (HealthDay News) -- This flu season continues to be one of the nastiest in years. And it isn't helping that the flu vaccine may be less than 20 percent effective against the season's dominant strain, according to a new Canadian report.

In the meantime, thousands of Americans are clogging hospital ERs or suffering at home, with new statistics from the U.S. Centers ...

West Nile Virus May Pose Zika-Like Threat to Fetus

WEDNESDAY, Jan. 31, 2018 (HealthDay News) -- Zika may not be the only virus that can harm a fetus, a new study in mice suggests.

"We found that West Nile virus and Powassan viruses shared with Zika the ability to infect the placenta and cause fetal death," said senior researcher Dr. Jonathan Miner, who's with Washington University School of Medicine in St. Louis.

Both of th...

A New Way to Thwart Disease-Spreading Mosquitoes

MONDAY, Jan. 29, 2018 (HealthDay News) -- It sounds like science fiction, but researchers say they have taken the first step toward creating female mosquitoes that don't bite and spread disease.

They identified 902 genes related to blood feeding and 478 genes linked to non-blood feeding from the mosquito species Wyeomyia smithii.

Found in swamps and bogs along the eas...

Zika Attacks Placentas of Pregnant Monkeys, Study Finds

FRIDAY, Jan. 26, 2018 (HealthDay News) -- When Zika infection occurs during pregnancy, the virus may damage the placenta, new research finds. This may explain how the infection causes birth defects.

It hasn't been clear how Zika infection can cause birth defects such as microcephaly, a smaller-than-normal head and an underdeveloped brain.

So Dr. Antonio Frias, an obstetricia...

Flu Season One of the Worst in a Decade: CDC

FRIDAY, Jan. 26, 2018 (HealthDay News) -- This flu season is shaping up as one of the nastiest in years, and it isn't showing any signs of easing, U.S. health officials said Friday.

Every state except Hawaii continues to experience widespread activity, with the more virulent H3N2 strain continuing to dominate, according to the latest weekly update from the U.S. Centers for Disease Co...

Zika Tied to Rise in U.S. Birth Defects: CDC

THURSDAY, Jan. 25, 2018 (HealthDay News) -- There was a significant rise in Zika-related birth defects in areas of the United States with local transmission of the mosquito-borne virus, a new report shows.

"Babies with Zika-related birth defects need all the help they can get, as soon as possible, and for as long as they need it," said Dr. Brenda Fitzgerald, director of the U.S. Cente...

More Bad News on Flu: It's Tied to Higher Heart Attack Risk

WEDNESDAY, Jan. 24, 2018 (HealthDay News) -- A bad case of the flu can trigger a short-lived, but substantial, spike in some people's heart attack risk, new research suggests.

Among 332 heart attack patients, the complication was six times more likely to strike following a bout of the flu, researchers reported.

The findings come in the midst of a particularly brutal flu seas...

Severe Flu Cases Just Keep Rising: CDC

FRIDAY, Jan. 19, 2018 (HealthDay News) -- An already bad U.S. flu season hasn't peaked yet, with the numbers of related hospitalizations and deaths cotinuing to rise, health officials said Friday.

Influenza - including the virulent H3N2 strain - remains widespread across every state except Hawaii, according to a weekly update released by the U.S. Centers for Disease Control and Preven...

Coming Soon: A Once-Weekly Pill to Fight HIV?

TUESDAY, Jan. 9, 2018 (HealthDay News) -- Goodbye, daily HIV meds?

Researchers say a once-a-week, slow-release pill may keep HIV infections under control and help prevent new HIV infections altogether.

The pill in question is still early in development. But it contains the same highly active antiretroviral therapy (HAART) -- the drug combination that revolutionized HIV trea...

Ebola Survivors May Develop Immunity to the Disease

TUESDAY, Dec. 26, 2017 (HealthDay News) -- The immune systems of people who survived the first Ebola outbreak 40 years ago appear to be protecting them against future infection with the deadly virus, a new study finds.

The discovery could help in efforts to develop vaccines and drugs to treat Ebola, according to the researchers.

"With the number and frequency of Ebola outbre...

Zika Nerve Damage May Stem From Body's Response to the Virus

MONDAY, Nov. 27, 2017 (HealthDay News) -- Nerve-related complications of Zika infection may be caused by the immune system's response to the virus, not the virus itself, according to a new study.

Zika is spread primarily via the bite of an infected mosquito, but it may also be transmitted by blood transfusion or sexual contact. Most people who become infected don't have any symptoms, ...

Are HIV and AIDS Poised for a Comeback?

WEDNESDAY, Oct. 25, 2017 (HealthDay News) -- The advent of powerful drugs in the mid-1990s brought remarkable gains in survival for HIV patients who had access to the medications.

But a team of experts now warns that the global HIV pandemic continues and is at risk of expanding, given the worrisome global rise of HIV resistance to antiretroviral (ART) medications.

"Cu...

Can Aspirin Stop Liver Cancer in Hepatitis B Patients?

FRIDAY, Oct. 20, 2017 (HealthDay News) -- Daily aspirin may reduce the risk of liver cancer for people with hepatitis B infection, a new study suggests.

Hepatitis B virus attacks the liver and can cause cirrhosis and liver cancer. Previous research suggests daily low-dose aspirin therapy may prevent cancer, but there is little clinical evidence on whether regular aspirin use can preve...

FDA Approves Test to Screen Donated Blood for Zika

FRIDAY, Oct. 6, 2017 (HealthDay News) -- The U.S. Food and Drug Administration has approved a new test -- called the cobas Zika test -- to screen donated blood for the Zika virus.

"Today's action represents the first approval of a Zika virus detection test for use with screening the nation's blood supply," Dr. Peter Marks said Thursday in an agency news release. Marks is director of t...

Zika Vaccine Works in Early Human Trial

THURSDAY, Oct. 5, 2017 (HealthDay News) -- An experimental vaccine for the Zika virus has shown signs of success in an early human trial.

The vaccine safely produced Zika-specific antibodies in 100 percent of the people involved in the study.

"Zika virus continues to be a threat to people living in the Americas and the Caribbean," said study author Dr. Pablo Tebas, a profes...

Scientists Learn How Flu Virus Changes So Quickly

TUESDAY, Oct. 3, 2017 (HealthDay News) -- Scientists have pinpointed a mechanism that helps flu viruses mutate rapidly, which could lead to new ways to fight the flu.

Because flu viruses mutate quickly, flu vaccines have to be redesigned every year.

The MIT researchers found that to mutate rapidly, flu viruses use a group of proteins called chaperones in infected cells in th...

Antibody Injections in Pregnancy Might Shield Fetus From Zika

WEDNESDAY, Oct. 4, 2017 (HealthDay News) -- A new antibody "cocktail" promises to provide effective, if temporary, protection against the Zika virus, a new study reports.

A blend of three potent antibodies completely prevented Zika infection in a group of four lab monkeys, said senior researcher David Watkins, a professor of pathology with the University of Miami Miller School of Medi...

Measles Making a Comeback in the United States

TUESDAY, Oct. 3, 2017 (HealthDay News) -- Less than 20 years ago, health experts thought it was only a matter of time before measles was completely eradicated in the United States. But over the past 15 years, the disease has gained a new foothold in the United States, likely due to parents choosing not to vaccinate their children, a new study suggests.

From 2001 to 2015 measles cases ...

Don't Let Your Kids Get Sidelined With Sports-Related Infections

TUESDAY, Sept. 26, 2017 (HealthDay News) -- Organized sports provide a wide range of benefits for children and teens. But there's a risk of infections if certain safety measures aren't followed, a new report from the American Academy of Pediatrics (AAP) warns.

"Joining an athletic team is a fun, physically challenging and healthy way for kids to practice teamwork and sportsmanship, bu...

Beat Back Mosquitos After Hurricane Irma

MONDAY, Sept. 18, 2017 (HealthDay News) -- As if those who weathered Hurricanes Irma and Harvey don't have enough to worry about, one bug expert warns that the standing water left behind is the perfect breeding ground for mosquitoes.

Residents need to drain birdbaths, pots and anything else in their yards that can provide egg-laying sites for the disease-carrying insects.

"N...

Vision Problems Common in Babies Infected With Zika

THURSDAY, Sept. 14, 2017 (HealthDay News) -- When Zika infections strike in the womb, babies' eyes likely suffer, researchers say.

Two studies of Brazilian infants with confirmed and suspected Zika virus infection in the womb found that all of them had vision problems. These problems included scarring, misalignment of the eyes, repetitive movement of the eye, and low vision.

Semen Harbors Wide Range of Viruses

WEDNESDAY, Sept. 13, 2017 (HealthDay News) -- Human semen provides a potential hiding place and breeding ground for a host of dangerous viruses, a new evidence review reports.

The analysis of current medical literature revealed genetic evidence of 27 infectious viruses found in semen, including dread-inducing agents like Zika, Ebola, Marburg, Lassa fever and chikungunya, along with ...

No Easy Road Back for Ebola Survivors

THURSDAY, Sept. 7, 2017 (HealthDay News) -- The vast majority of people who survive an infection with the Ebola virus struggle with ongoing disabilities, including significant limitations in thinking, vision and the ability to move, new research shows.

Scientists from the Liverpool School of Tropical Medicine and the University of Liverpool checked to see how a group of 27 Ebola survi...

Could the Zika Virus Help Battle a Deadly Brain Cancer?

TUESDAY, Sept. 5, 2017 (HealthDay News) -- The Zika virus is well known for causing devastating brain defects in fetuses. But what if scientists could use that ability to do something good?

Researchers report that they think they might be able to harness the virus' attraction to developing brain cells -- instead of adult brain cells -- as a potential treatm...

White Kids More Likely to Get Unneeded Antibiotics

TUESDAY, Sept. 5, 2017 (HealthDay News) -- White children are about twice as likely as black or Hispanic kids to get unneeded antibiotics when treated in U.S. emergency rooms for viral respiratory infections, a new study finds.

For years, scientists have warned that unnecessary use of antibiotics is making germs stronger and more resistant to medications. ...

Zika Hijacks Pregnant Woman's Immune System

MONDAY, Aug. 21, 2017 (HealthDay News) -- The Zika virus thrives in pregnant women by suppressing their already dampened immune systems and running roughshod over their body's natural defenses, which allows the virus to directly attack the fetus, a new study reports.

A woman's immune system naturally suppresses itself during pregnancy to keep the body from recognizing the fetus as a f...

Zika May Not Last in Semen as Long as Thought

FRIDAY, Aug. 18, 2017 (HealthDay News) -- Zika virus might not remain in the semen of some infected men as long as previously thought, a small study suggests.

The researchers said Zika may only be present in semen for about a month. Previous research had suggested that Zika virus can be found in semen for as long as 188 days after the onset of symptoms.

The new study include...

'Herd Immunity' May Be Curbing U.S. Zika Numbers

WEDNESDAY, Aug. 16, 2017 (HealthDay News) -- The number of Zika infections has dropped dramatically in Florida this summer, and scientists say herd immunity may be the reason why.

In practical terms, herd immunity means that people traveling to the United States from South America and the Caribbean may have been infected with Zika in the past, but they can ...

Rotavirus Vaccine Cut Kids' Hospitalization, Medical Costs

WEDNESDAY, Aug. 9, 2017 (HealthDay News) -- Hundreds of thousands of cases of diarrhea in young children have been prevented since routine vaccination against rotavirus began in the United States a decade ago, a new study shows.

That has translated into a savings of more than $1 billion in medical costs, the researchers added.

Rotavirus is a common cause of diarrhea in infan...

Zika Probably Not Spread Through Saliva: Study

TUESDAY, Aug. 1, 2017 (HealthDay News) -- Scientists have some interesting news about Zika: You're unlikely to get the virus from kissing or sharing utensils with someone.

A new study with monkeys suggests that Zika doesn't appear to be transmitted through saliva.

"If passing the virus by casual contact were easy, I think we would see a lot more of what we would call seconda...

Wider Access to Meds Cuts Global AIDS Deaths in Half

THURSDAY, July 20, 2017 (HealthDay News) -- AIDS-related deaths worldwide have been halved since 2005 as more people were able to get lifesaving drugs, UNAIDS (a United Nations Program) says in a new report.

In 2016, 19.5 million (53 percent) of the almost 37 million people living with HIV (the virus that causes AIDS) had access to HIV treatment. AIDS-related deaths fell from 1.9 mill...

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Wellness Library Results - 8

What is Roseola? Roseola, or roseola infantum, is a fairly mild childhood disease that causes fever and a rash. Sometimes called "baby measles," it typically strikes children between the ages of 6 months and 2 years. It's caused by the human herpes virus 6, a cousin of the viruses that cause cold sores and genital herpes. What are the symptoms? Roseola generally starts with a moderate to hig...

What is cytomegalovirus (CMV)? Although few people have heard of cytomegalovirus, or CMV, many of us are carrying it at this very moment. It's a common virus that's spread during sex, or in blood, urine, saliva, or breast milk; babies can also be infected with it before or during birth. Fifty to 80 percent of American adults have CMV by age 40, but the majority doesn't even know it. The reason is...

What is hantavirus? In 1993, a new medical mystery surfaced in the Four Corners area of the U.S. Southwest. It started when a young Navajo couple died within a few days of each other. Each had seemed perfectly healthy until a sudden illness left them gasping for breath. In each case, death came rapidly. Tests showed that they didn't have bubonic plague or any other known disease. After checking r...

When summer plunges into its hottest months, West Nile virus and the mosquitoes that carry the disease make their unwelcome presence felt in the United States. The virus is believed to have been carried into the country by a traveler from Europe or the Middle East in 1999, but it didn't cause significant problems until summer 2002. By the end of that year, the virus had infected 4,156 people in 3...

What is hepatitis A? The liver is a large, hard-working organ that protects the body from toxins. It can handle all sorts of insults, but it also has its weaknesses. It doesn't like too much alcohol, and it definitely doesn't like viruses that cause hepatitis or inflammation of the liver. There are five types of hepatitis viruses: hepatitis A, B, C, D, E, and F. Of these, A, B, and C are by far ...

What is yellow fever? Yellow fever is a tropical disease caused by the yellow fever virus. It is spread by certain types of mosquitoes. There was a time when yellow fever was one of the most feared diseases in America. In the 1700s and 1800s, yellow fever killed more than 100,000 Americans from New Orleans to Boston. The last epidemic in this country ended in 1905, but yellow fever continues to ...

When summer is in full swing, you can bet that people will want to be outdoors. Unfortunately, it's also the time that mosquitoes come out. You should take care to protect yourself from West Nile virus, one of many germs that mosquitoes can carry. The insects pick up the virus by feeding on infected birds and transmit the disease when they bite other animals. The virus has been found in many diffe...

What is rabies? Rabies is one of the oldest diseases known to mankind, and it used to be cause for panic and hysteria. A Spanish neurologist even speculated that rabies may have spurred legends of vampires. Until recently, being bitten by a rabid animal was a death sentence. Even now, we can only prevent the disease, not treat it. Once symptoms appear, rabies is almost always fatal. Thanks to ef...

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