Factbox: Latest on the worldwide spread of the coronavirus The Biden administration plans to extend requirements for travellers to wear masks on airplanes, trains and buses and at airports and train stations through Jan. 18 to address COVID-19 risks, three sources told Reuters. Reuters Staff U.S.

(Reuters) - The Biden administration plans to extend requirements for travellers to wear masks on airplanes, trains and buses and at airports and train stations through Jan. 18 to address COVID-19 risks, three sources told Reuters.

Other developoments:

CDC action heats up debate over vaccine boosters The debate over COVID vaccine boosters is intensifying after federal health authorities authorized a third dose of the vaccine for immunocompromised people last week. Nathaniel Weixel TheHill

Health experts said the decision made sense, but the move is likely to spur more confusion than clarity about the need for a booster dose. 

Aug 16 (Reuters) - The UK's health regulator said on Monday COVID-19 vaccines did not raise the risk of miscarriage, and that it had not found any link between the shots and changes to menstrual periods.

"There is no pattern from the reports to suggest that any of the COVID-19 vaccines used in the UK, or any reactions to these vaccines, increase the risk of miscarriage or stillbirth," the Medicines and Healthcare products Regulatory Agency (MHRA) said in a statement.

This much is clear: Some people in the United States with medical conditions that have compromised their immune systems are now eligible for a third dose of Covid-19 vaccine.

But the new policy from U.S. health officials, announced late last week, came together in a hurry. It addresses some questions but leaves a number unanswered, in some cases because there are no data on which to base a decision.

Some experts believe the new policy may also have created a loophole big enough to allow easier access to a third dose for non-immunocompromised people who are trying to find ways to get one.

“I worry very much that this is going to lead to vaccination chaos,” Michael Osterholm, director of the University of Minnesota’s Center for Infectious Diseases Research and Policy, told STAT.

Why A Hard-Sell Pitch For COVID Vaccines Won't Work In This Rural Illinois Town The sponsor of 4-H clubs nationally is tapping its respected roots in rural communities to promote COVID-19 vaccines. But it won't be easy, locals say. Start with trusted local voices — and listen. NPR.org

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