COVID-19 antibodies can disappear after 2-3 months
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(Ralph Ellis/ WedMD) — People who develop antibodies after becoming infected with the coronavirus may not keep them more than a few months, especially if they showed no symptoms to begin with, a Chinese study shows.

Previous studies had found that most people who became infected developed antibodies. Health departments around the   …

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Some countries reconsider 2-metre rule for physical distancing, but not Canada
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(CBC News) — Dr. Theresa Tam, Canada’s chief public health officer, continues to recommend people stay two metres apart from others to curb COVID-19 as the economy reopens and countries like Britain relax their distancing rule.

On Tuesday, British Prime Minister Boris Johnson announced pubs, restaurants and hotels could reopen  …

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Eating too much sugar could increase the risk of Alzheimer’s
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(Agence France-Presse) — A study led by researchers from Inserm (the French National Institute of Health and Medical Research) and the University of Montpellier points to a link between excessive consumption of sugary foods and an increased risk of developing Alzheimer’s in people with a genetic predisposition to the disease.

For  …

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Study finds 1 in 5 people worldwide at risk of severe Covid-19
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(Katherine J. Wu/ New York Times) — In just six months, nearly 8 million people worldwide have been stricken with confirmed cases of Covid-19, and at least 434,000 have died. But those deaths have not been distributed evenly; among the most vulnerable are people with underlying health conditions, such as diabetes and diseases  …

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Antibody tests don’t mean a ton right now … but that could change soon
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(Alice Park/ Time) — In the largest study to date looking at the antibodies produced by people who have recovered from COVID-19, researchers uncovered a few surprises that could have implications for not only how useful antibody-based treatments might be, but also what the results from an individual’s antibody test actually means.  …

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Dexamethasone shows promise as a Covid-19 treatment
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(Umair Irfan/ Vox) —Scientists at Oxford University in the United Kingdom this week reported that a trial of the drug dexamethasone shows it may be the first treatment demonstrated to save the lives of Covid-19 patients.

Dexamethasone is a corticosteroid typically used to treat inflammation. It’s cheap, as little as $1 per dose. It’s  …

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‘Super-potent’ antibodies may offer Covid-19 therapy
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(Vanessa Chalmers/ Daily Mail) — Experts discovered extremely strong antibodies which prevented hamsters getting severely unwell with the disease, when exposed to the SARS-CoV-2 virus.

Academics at Scripps Research, in San Diego, say the antibodies can be cloned in the lab and be mass-produced, if they are proven to fight the virus.  …

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A second shutdown over coronavirus could be worse than the first
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(Holly Yan/ CNN) — It’s an outcome no one wants, but could become a “harsh reality”: a second wave of shutdowns.

Weeks after lifting stay-at-home orders, some states are seeing record numbers of hospitalizations from Covid-19 as thousands more Americans get infected every day.

“We’re going to have  …

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Hairstylists with COVID-19 didn’t infect any clients. Face masks may be why
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(Nicoletta Lanese/ LiveScience) — Two hair stylists in Missouri interacted with a total of 140 clients and six coworkers before learning they both had COVID-19 — thankfully, the stylists didn’t pass the virus on to any of these contacts, according to a statement from the local health department.

The stylists work at a Great Clips  …

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Health professionals call on Quebec to make wearing masks mandatory
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(CBC News) — A group of epidemiologists and other health professionals are calling on the government to make the wearing of masks mandatory in Quebec.

At a news conference Thursday morning, epidemiologist Nima Machouf said masks and other face-coverings are a “low-cost, risk-free” way to limit the spread of the COVID-19  …

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