Blood donations show the U.S. is still nowhere near herd immunity Testing donated blood for antibodies to the coronavirus highlights that the vast majority of the United States remains susceptible to infection. Helen Thompson Science News

To better understand how widely the coronavirus has spread in the United States, some researchers are turning to an unusual source of data: blood donations.

Report: Much needs doing to shield nursing homes from virus WASHINGTON (AP) — The Trump administration is claiming “resounding vindication” from an independent commission's report on the coronavirus crisis in nursing homes, but some panel members say... AP NEWS

WASHINGTON (AP) — The Trump administration is claiming “resounding vindication” from an independent commission’s report on the coronavirus crisis in nursing homes, but some panel members say that’s a misinterpretation of their conclusion that much remains to be done to safeguard vulnerable residents.

Two drug companies that are leading the race to develop coronavirus vaccines bowed to public pressure on Thursday, abandoning their traditional secrecy and releasing comprehensive road maps of how they are evaluating their vaccines.

The companies, Moderna and Pfizer, revealed details about how participants are being selected and monitored, the conditions under which the trials could be stopped early if there were problems, and the evidence researchers will use to determine whether people who got the vaccines were protected from Covid-19.

Moderna’s study will involve 30,000 participants, and Pfizer’s 44,000.

WHO Europe chief urges nations to keep up virus quarantines GENEVA (AP) — The World Health Organization’s European director warned national governments Thursday against reducing the quarantine period for people potentially exposed to the coronavirus, even... AP NEWS

GENEVA (AP) — The World Health Organization’s European director warned national governments Thursday against reducing the quarantine period for people potentially exposed to the coronavirus, even as he acknowledged that COVID-19 “fatigue” was setting in with growing public resistance to the measures needed to control the pandemic.

Global coronavirus cases surpass 30 million: Reuters tally Global coronavirus cases exceeded 30 million on Thursday, according to a Reuters tally, with the pandemic showing no signs of slowing. Jane Wardell U.S.

(Reuters) - Global coronavirus cases exceeded 30 million on Thursday, according to a Reuters tally, with the pandemic showing no signs of slowing.