(Reuters) - The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus.
TOKYO — Transportation minister Kazuyoshi Akaba says Japan will tighten border controls and limit the number of entrants to up to 2,000 per day to guard against the more contagious variants of the coronavirus.
NEW YORK/JERUSALEM (Reuters) - Pfizer Inc and BioNTech SE said on Thursday that real-world data from Israel suggests their COVID-19 vaccine is 94% effective in preventing asymptomatic infections, meaning it could significantly reduce transmission.
SEATTLE — Facing the nation’s first widespread coronavirus outbreak, some of Washington State’s top leaders quietly gathered on a Sunday morning last March for an urgent strategy session.
The virus had been rampaging through a nursing home in the Seattle suburbs. By the time the meeting began, the region had recorded most of the nation’s first 19 deaths. New cases were surfacing by the hour.
As the meeting’s presentation got to the fifth slide, the room grew somber. The numbers showed a variety of potential outcomes, but almost every scenario was a blue line pointing exponentially upward. ...
Natalie Lambert, an associate research professor at Indiana University School of Medicine, surveyed thousands of "long-hauler" Covid-19 patients, finding that specific symptoms tend to emerge at regular intervals — usually a week or 10 days — resulting in what she calls "waves of symptoms."
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