Day: June 19, 2020

As Some Sleepaway Summer Camps Close Down, Others Balance the Risks

“There’s no way to socially distance with an overnight camp,” Dr. Wollman-Rosenwald said.

But day camps aren’t necessarily better. Children who catch the virus in these settings could take it home to their family. Asymptomatic transmission is known to play a substantial role in the pandemic, and daily camp commuters could unknowingly provide opportunities for microbes to travel.

With modifications, overnight camps could actually be some of the safest options for summer, said Dr. Pardis Sabeti, a computational biologist at Harvard University and the Broad Institute. Adequate testing would be a must for all — campers, counselors and staff members — before arrival; and everyone would probably need to remain on-site full time, effectively walling themselves off from society for the camp’s duration. Each cabin of campers could then become its own family unit, interacting with only one another and minimizing contact with other “households” — mirroring what is already

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You May Have Antibodies After Coronavirus Infection. But Not for Long.

It’s a question that has haunted scientists since the pandemic began: Does everyone infected with the virus produce antibodies — and if so, how long do they last?

Not very long, suggests a new study published Thursday in Nature Medicine. Antibodies — protective proteins made in response to an infection — may last only two to three months, especially in people who never showed symptoms while they were infected.

The conclusion does not necessarily mean that these people can be infected a second time, several experts cautioned. Even low levels of powerful neutralizing antibodies may still be protective, as are the immune system’s T cells and B cells.

But the results offer a strong note of caution against the idea of “immunity certificates” for people who have recovered from the illness, the authors suggested.

Antibodies to other coronaviruses, including those that cause SARS and MERS, are thought to last

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Many Medical Decision Tools Disadvantage Black Patients

Unbeknown to most patients, their race is incorporated into numerous medical decision-making tools and formulas that doctors consult to decide treatment for a range of conditions and services, including heart disease, cancer and maternity care, according to a new paper published Wednesday in the New England Journal of Medicine.

The unintended result, the paper concludes, has been to direct medical resources away from black patients and to deny some black patients treatment options available to white patients.

The tools are often digital calculators on websites of medical organizations or — in the case of assessing kidney function — actually built into the tools commercial labs use to calculate normal values of blood tests. They assess risk and potential outcomes based on formulas derived from population studies and modeling that looked for variables associated with different outcomes.

“These tests are woven into the fabric of medicine,” said Dr. David Jones, the

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Live Coronavirus Updates: Tensions Grow Over Masks

More than 140,000 cases were reported on Tuesday and another 166,000 on Wednesday, two of the three highest tallies since the outbreak began. Seventy-seven nations have seen a growth in new cases over the past two weeks, while only 43 have seen declines.

While Wednesday’s total, the record high, was inflated by a backlog of more than 30,000 mishandled and unreported cases that Chile added to its tally, the rising daily numbers reflect the pandemic’s stubborn grip on the world.

Brazil reported more than 32,000 new cases on Wednesday, the most in the world, and the United States was second, with more than 25,000. The leaders of both nations have been criticized for their handling of the outbreak.

On Thursday, California and Florida reported their highest daily totals of new cases yet. And Texas became the sixth state in the nation to surpass 100,000 cases, according to a New York

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