The risk of hospitalization for COVID-19 among older Americans is far higher for those who are unvaccinated than for those who are fully vaccinated and have had a booster shot, new government data shows.
The differences were stark: In December, unvaccinated people 50 and older were 17 times more likely to be hospitalized with COVID-19 than those who had completed the initial immunization...
Herd immunity against COVID-19 is unlikely, and coping with the disease will likely hinge on vaccination, treatment and ensuring adequate hospital capacity, a new study conducted in Los Angeles County claims.
With herd immunity, most people have antibodies from vaccination or prior infection, so a virus has...
If you need more proof that a third shot of COVID vaccine is needed, new British research confirms that boosters can "neutralize" the virus' Omicron variant.
To arrive at that conclusion, they analyzed 620 blood samples from 364 health care workers and staff at the Francis Crick Institute and the National Institute for Health Research UCLH Biomedical Research Centre, in London.
If COVID-19 vaccines and medicines are shared equally worldwide, the pandemic could ease this year, a top World Health Organization official said Tuesday.
However, if wealthier countries don't share their resources with poorer countries, there will continue to be high rates of deaths and hospitalizations, warned Dr. Michael Ryan, head of emergencies at WHO.
It's too soon to determine whether Omicron's rapid spread will turn a pandemic virus into an endemic disease, America's top infectious disease expert says.
That "would only be the case if we don't get another variant that eludes the immune response to the prior variant," Dr. Anthony Fauci said this week during the Davos Agenda, a virtual event being held this week by the World Economic Fo...
Unvaccinated pregnant women are putting themselves and their baby at risk for serious complications of COVID-19, according to new research out of Scotland.
For women who have the virus within 28 days of their delivery date, those complications include preterm births, stillbirths and newborn deaths. Infant deaths are four times higher among unvaccinated women,
New U.S. data based on nearly 9 million doses of the Pfizer-BioNTech COVID-19 vaccine delivered to kids ages 5 to 11 shows no major safety issues, according to researchers at the U.S. Centers for Disease Control and Prevention.
COVID-19 is again surging throughout the United States, with the Omicron variant already outpacing this summer’s Delta variant in the rate of daily cases.
However, numbers of hospitalizations have not yet reached those surging numbers this holiday season, according to CNN. That may not last, experts warn, because tens of millions of Americans continue to be at higher risk of c...
Flu is making a comeback in the United States this year, with cases rising around the country even as the Omicron variant is surging, infectious disease experts say.
"We already are seeing significant increases in the amount of influenza occurring across the United States, especially with regards to the eastern part of the U.S. and the central part of the country," said Dr. Tina Tan, an i...
President Joe Biden laid out a comprehensive plan on Tuesday to help Americans navigate a tough winter facing the Omicron variant, but he also made an impassioned plea for every eligible person to get vaccines and boosters.
"For the folks who aren't vaccinated, you may think you're putting only yourself at risk, but your choice is not just a choice about you," Biden said during a speech f...
President Joe Biden plans to announce his latest battle plan for fighting the formidable Omicron variant on Tuesday, with measures to include distributing 500 million free rapid COVID tests to the public, opening new federal testing sites, sending out hundreds of federal vaccinators, and providing 1,000 military medical personnel to bolster beleaguered hospitals.
The measures, many of whi...
Robert Preidt and Robin Foster HealthDay Reporters
Moderna Inc. announced Monday that its COVID-19 vaccine booster shot significantly increased antibodies against the Omicron variant.
“The dramatic increase in COVID-19 cases from the Omicron variant is concerning to all. However, these data showing that the currently authorized Moderna COVID-19 booster can boost neutralizing antibody levels 37-fold higher than pre-boost levels are reass...
Breakthrough infections in people who've been vaccinated against COVID-19 may trigger "super immunity" against coronavirus variants, including Omicron, according to a new study.
"The key is to get vaccinated. You’ve got to have a foundation of protection," said co-author Dr. Marcel Curlin, an associate professor of medicine at Oregon Health & Sciences University (OHSU) in Portland.
COVID-19 vaccination provides far less protection to people with multiple myeloma than to survivors of other types of cancer, new research shows.
The findings highlight the need for multiple myeloma patients “to be especially careful -- to take social distancing seriously and utilize masking -- even if they’ve been vaccinated,” said study senior author Dr. Nikhil Munshi, from the Je...
Cancer patients are at risk for serious COVID-19 illness, but some are still afraid to get vaccinated against the virus, new research shows.
Study authors surveyed nearly 200 high-risk cancer patients at the Mays Cancer Center in San Antonio, Texas. Only 56% said they'd received at least one COVID-19 vaccine dose, compared to the community vaccination rate of 76%.
Public health experts have long recommended getting a seasonal flu shot, but a new study suggests there's hesitancy about that vaccine, too. Physicians and pharmacists can play a key role in flu shot uptake, the research shows.
Only about 44% of people who had a health care provider got their flu shots, the study found, but it was even worse among those who didn't have a doctor: Only one...
If you're a patient with a weakened immune system, roll up your sleeves to stay safe over the holidays and winter months.
"Immunocompromised patients absolutely should get a flu shot as well as an additional COVID-19 vaccine dose," said Dr. Marwa Kaisey, a neuroimmunologist and assistant professor of neurology at Cedars-Sinai in Los Angeles.
Lab studies show that the mutations found in COVID-19's Delta variant make the virus more resistant to existing vaccines, a potentially ominous development as the new Omicron variant starts to wend its way around the world.
Full vaccination with the Pfizer or AstraZeneca vaccines still produces enough antibodies to neutralize Delta, British researchers found.
Children and teenagers vaccinated against the mumps virus have accounted for one-third of infections in recent years, a new U.S. government study finds.
The reasons are unclear, and experts stressed that routine childhood vaccination remains the best weapon against mumps -- a contagious infection that is usually mild, but can cause serious complications.
Pfizer Inc. is expected to seek approval this week for emergency use of its booster shots among American teens ages 16-17.
Sources familiar with the matter told The New York Times that the U.S. Food and Drug Administration could give the green light in about a week, which would make the Pfizer booster shot the first one available for people younger than 18.
Protection can gradually fade after a second dose of the COVID-19 vaccine by Pfizer-BioNTech, which suggests that a booster shot might be necessary, researchers report.
They analyzed data from more than 80,000 adults in Israel, average age 44, who had no previous evidence of infection and who had received a PCR test at least three weeks after their second shot of the two-dose Pfizer vacc...
Republican lawmakers in several states are pushing vaccine mandate exemptions for workers who have so-called natural immunity due to a previous COVID-19 infection.
That's despite evidence that vaccination can reduce the risk of COVID-19 even for those with a history of infection, and the fact that there's no easy way to assess the protection provided by prior infection, CBS News ...
Federal health officials are imploring Americans to get vaccinated as coronavirus cases and hospitalizations start to climb just ahead of the holidays.
There's been an 18% increase in the United States' seven-day average of reported coronavirus infections, and a 6% increase in the seven-day average of COVID-19 hospitalizations, U.S. Centers for Disease Control and Prevention Director Dr. ...