A new DNA sensor can detect viruses and tell if they are infectious or not in minutes, a new study finds.
The sensor was developed by using DNA technology, and does not require the need to pretreat test samples. Researchers demonstrated this technique with the human adenovirus (which causes colds and flu) and the virus that causes COVID-19.
The future of COVID-19 treatments might include a tiny antibody made by llamas.
British researchers credit a llama named Fifi with their finding.
The investigators said these llama nanobodies, which are also produced by camels, could eventually be produced in a lab and administered by a nasal spray, binding tightly to the COVID-19 virus and neutralizing it.
Antibodies from current COVID-19 vaccines don't bind well to the new variants of the virus, a study finds.
Researchers collected data from previously published papers about the sequence of antibodies produced by the vaccines. They focused on antibodies against the spike protein, a part of the virus that binds to receptors on human cells to infect them. It's the target of most vaccines.
If a person is diagnosed with COVID-19 in the United States right now, it's almost certainly caused by the Delta variant.
The highly transmissible variant, which caused crippling surges in India and Britain this past spring and fueled case spikes in the United States this summer, is now responsible for over 99% of all cases tracked in this country, according to the latest data from the
A study of millions of people vaccinated against COVID-19 has identified those at greatest risk of hospitalization and death after breakthrough infection.
The most vulnerable are those who are immunosuppressed from chemotherapy, a recent bone marrow or solid organ transplant, or HIV/AIDS. Also at risk are people with neurological disorders (such as dementia and Parkinson's disease), nur...
An advisory panel to the U.S. Food and Drug Administration on Friday recommended a third Pfizer-BioNTech COVID vaccine booster shot for all Americans aged 65 or older, as well as for those deemed to be at high risk for severe illness.
According to The New York Times, that vote came after a near unanimous decision (16 to 2) by the same independent panel of experts that sa...
In kids and teens, symptoms of long COVID rarely last more than 12 weeks, a new international study reports.
The researchers also found that exposure to the highly contagious Delta variant did not result in more serious disease in children compared to earlier variants, and that most cases of COVID-19 were asymptomatic or mild.
Despite those reassurances, the study did include a trou...
TUESDAY, Sept. 14, 2021 (HealthDay News) – New data out of Israel, to be published this week, could bolster the notion that a third booster shot of the COVID-19 vaccine significantly lowers a recipient's odds for severe illness.
The data is scheduled to be published in the peer-reviewed New England Journal of Medicine, ahead of this week's U.S. Food and Drug Administra...
While in the United States preteens and teens aged 12 to 15 have been eligible for COVID-19 vaccines since the spring, the vaccines are only now becoming available for that age group in the United Kingdom.
According to the Associated Press,on MondayBritain gave its approval for use of the vaccines in children 12 and older as part of a "tool kit" to avoid lockdowns this fall and ...
Monoclonal antibody infusions can help prevent severe COVID-19, but the best protection is to get vaccinated, experts say.
Antibodies are made by the immune system to fight infections.
"The problem is that our immune system takes two to three weeks to make good antibodies," said Dr. Turner Overton, co-director of the Alabama Vaccine Research Clinic at the University of Alabama at Bi...
A high amount of coronavirus in the lungs is a major contributor to death in COVID-19 patients, new research shows.
The findings challenge previous theories that simultaneous infections such as pneumonia or an overreaction of the body's immune system are significant factors in COVID-19 deaths, the researchers noted.
To come to that conclusion, the investigators analyzed bacterial an...
A common bug called respiratory syncytial virus (RSV) circulating among American kids during what's normally its off-season may cause concern if parents don't know how to tell it apart from COVID-19, experts say.
Getting RSV during the summer is unusual, but the U.S. Centers for Disease Control and Prevention recently issued an alert about a rise in RSV cases in Southern states.
Major pandemics aren't all that rare and they're likely to occur more often in the future, a new study claims.
"The most important takeaway is that large pandemics like COVID-19 and the Spanish flu are relatively likely," study co-author William Pan said in a news release from Duke University, where he is an associate professor of global environmental health.
Survivors of severe or long COVID-19 could have greater antibody protection against future infection than those whose illness was shorter or milder, new research suggests.
For the study, a Rutgers University team followed 548 health care workers and 283 other workers from the start of the pandemic. Within six months, 93 (11%) of them tested positive for SARS-CoV-2 or for antibodies agains...
If you suffered a bout of COVID-19 and your lungs took a beating, new research has reassuring news: You will likely be spared long-term respiratory damage.
Scientists looked at COVID-19 survivors who had asymptomatic, moderate or severe COVID-19 infections and also underwent unrelated elective lung operations (for example, to treat lung nodules or lung cancer) at some point after they rec...
Texas Governor Greg Abbott has tested positive for COVID-19 but has not experienced any symptoms, his office announced Tuesday.
Abbott, who is fully vaccinated, is being treated with Regeneron's monoclonal antibodies in an effort to shorten the duration of the infection, his communications director Mark Miner said in a statement Tuesday afternoon, CBS News reported.
COVID-19 vaccination triggers a strong immune response in people with HIV, meaning they're likely protected against the coronavirus, a new, small study shows.
"Previous research has suggested a suboptimal response to COVID-19 vaccines in people living with HIV; however, these studies did not fully characterize and define that response, both for cellular [where the immune system directly a...
Masks are making an unwanted comeback in many parts of the United States, after new data showing that fully vaccinated people with "breakthrough" coronavirus infections carry enough virus in their bodies to pose a potential risk to the unvaccinated.
But these breakthrough infections -- which have become slightly more common with the highly transmissible Delta variant -- pose little to no ...
People fully vaccinated with the Moderna COVID-19 vaccine appear to have a lower risk of a "breakthrough" infection caused by the Delta variant than those who received the Pfizer vaccine, a new, preliminary report suggests.
The researchers emphasized that both vaccines still "strongly protect" against severe illness, but the difference appears to be in the degree of pro...
A small, early study suggests that people who've already encountered SARS-CoV-2 may gain a big boost against COVID-19 if they get just one dose of the Pfizer vaccine -- and that protection may extend to new viral variants.
The study "supports the notion that vaccine effectiveness, even against emerging neutralization-resistant [variants], may be improved following an additional vaccine bo...
News that the highly contagious Delta variant of COVID-19 can be picked up and spread by vaccinated folks has sparked confusion and concern, and an infectious disease expert wants to clarify.
These worries follow a recent U.S. Centers for Disease Control and Prevention recommendation that urged even vaccinated folks to wear masks indoors in areas with substantial or high rates of COVID-19...
Parents of kids with asthma and allergies should prepare a plan to keep them safe as schools reopen, the American College of Allergy, Asthma and Immunology (ACAAI) says.
Along with guarding against COVID-19, it's important to protect against cold, flu and other viruses that pose a risk to children with asthma. That includes wearing masks, washing hands and using hand sanitizer whenever po...
I think I've had COVID-19 already, so do I really need two doses of vaccine?
It's a question millions of people around the world are asking, and now a small, new study finds that people who know they were infected with SARS-CoV-2 in the past may need only one shot of the Pfizer vaccine to gain strong immunity.
In fact, "we observed higher SARS-CoV-2 antibody levels in previously in...
The two HIV prevention drugs available in the United States are equally safe and effective, and the biggest difference between them is price, a new study contends.
However, a sizable minority of patients have switched from the older and cheaper "preexposure prophylaxis" (PrEP) formulation to the newer and much pricier one. In many cases that switch might not have been warranted, the resea...
Ernie Mundell and Robert Preidt HealthDay Reporters
Exactly what symptoms of early COVID-19 infection you suffer may depend on both your age and gender, a new study finds.
"As part of our study, we have been able to identify that the profile of symptoms due to COVID-19 differs from one group to another. This suggests that the criteria to encourage people to get tested should be personalized using individuals' information such as age. Alter...
Kids who are around people who use marijuana may be at risk for more colds and respiratory infections due to secondhand smoke, according to a new study.
In a survey of 1,500 parents and caregivers, those who regularly smoked or vaped marijuana reported more respiratory viruses among their children in the preceding year, compared to parents who did not smoke tobacco or marijuana.
Pfizer's coronavirus vaccine provides surprisingly robust protection against the highly infectious Delta variant of COVID-19 -- but only if you've gotten both doses.
Fresh data out of England shows that two doses of the messenger RNA (mRNA) vaccine is 88% effective in protecting people against the Delta variant, compared with about 94% effectiveness against the original strain of COVID.