A new study of more than 150 COVID-19 patients shows that IgA antibodies dominate the early response to the SARS-CoV-2 virus, coming on more quickly and strongly than IgG and IgM antibodies. This is a somewhat unexpected result, as IgM antibodies are usually the immune system’s first responders. The finding may also inform the development…
A new 5-month longitudinal analysis of 254 COVID-19 patients who displayed a wide range of disease severity – from asymptomatic to deadly illness – suggests that IgA and IgM antibodies to the SARS-CoV-2 virus disappear quickly during convalescence. IgG antibodies likely persist for longer, but Katharina Röltgen and colleagues nonetheless documented a slow, inexorable decline…
Before Sunday, much of California was already under a curfew prohibiting residents from leaving their homes to do nonessential work or to gather from 10 p.m. to 5 a.m. The governor’s order required regions in the state to be placed under new restrictions once their intensive care unit availability fell below 15 percent. With capacity…
WASHINGTON — A doctor who is skeptical of coronavirus vaccines and promotes the anti-malaria drug hydroxychloroquine as a Covid-19 treatment will be the lead witness at a Senate Homeland Security and Governmental Affairs Committee hearing on Tuesday, prompting criticism from Democrats who say Republicans should not give a platform to someone who spreads conspiracy theories.…
In September, academic researchers analyzed the Department of Homeland Security’s list of essential workers and found that it broadly mirrored the demographics of the American labor force. The researchers proposed a narrower, more vulnerable category — “frontline workers,” such as food deliverers, cashiers and emergency medical technicians, who must work face to face with others…
On the heels of last month’s news of stunning results from Pfizer’s and Moderna’s experimental Covid-19 vaccines, Senator Rand Paul tweeted a provocative comparison. The new vaccines were 90 percent and 94.5 percent effective, Mr. Paul, Republican of Kentucky, said. But “naturally acquired” Covid-19 was even better, at 99.9982 percent effective, he claimed. Mr. Paul…
Q. What have we learned since March? A. Distance is the most effective intervention; the virus doesn’t have legs, so if you are physically distant from people, you avoid direct contact and droplets. Then you have to consider inside spaces, which are especially in play during winter or in hotter countries during summer: the bus,…
Researchers from Case Western Reserve University presented research today in which Hemex Health’s Gazelle platform diagnostic technology successfully tested 46 patients with 100% sensitivity and over 92.3% specificity for anemia and with 100% accuracy for hemoglobin variants. The preliminary study included blood samples collected from Cleveland-area patients studied for anemia and sickle cell disease. The…
A CAR T-cell therapy known as axicabtagene ciloleucel (axi-cel) drove cancer cells to undetectable levels in nearly 80% of patients with advanced non-Hodgkin lymphoma (NHL) in a phase 2 clinical trial, Dana-Farber Cancer Institute investigators report at the virtual 62nd American Society of Hematology (ASH) Annual Meeting. While NHL tends to be a slow-growing disease,…
With coronavirus infections soaring across the nation, federal health officials on Friday urged Americans in the most forceful language yet to take steps to protect themselves — starting with consistent, proper use of masks — and pressed local governments to adopt 10 public health measures deemed necessary to contain the pandemic. The guidance reflected deep…