Border restrictions were being tightened around the world Monday in the face of an unrelenting coronavirus threat, after a weekend in which anger at social distancing rules bubbled over into fiery clashes in the Netherlands.

Egypt began its Covid-19 immunization program Sunday, becoming one of the first countries in Africa to vaccinate its citizens, with a doctor and a nurse receiving the Chinese-made Sinopharm jab.

Germany will become the first European Union country to start using the same experimental antibodies treatment credited with helping Donald Trump recover from Covid-19, health minister Jens Spahn said Sunday.

The emirate of Dubai has said it was slowing down its rollout of the Pfizer-BioNTech coronavirus vaccine due to a temporary delay in global deliveries. 

US President Joe Biden on Friday said "well over 600,000" Americans could die of the coronavirus as he stepped up federal aid in the world's worst-hit country, while less wealthy nations anticipated better access to tests and vaccines thanks to several international deals.

Germany on Friday recorded more than 50,000 deaths from the coronavirus since the start of the pandemic, as public health officials expressed cautious optimism about a slowing infection rate.

The Brazilian government said Thursday that a shipment of two million doses of the British AstraZeneca-Oxford Covid-19 vaccine was finally set to arrive in the country from India.

Japan's cabinet approved draft laws to toughen coronavirus restrictions on Friday, a move that could threaten rule-breakers with fines and prison sentences for the first time since the outbreak began.

A synthetic antibody developed by Eli Lilly reduced the risk of contracting Covid-19 by 80 percent in a study of nursing home residents when used preventatively, the company said Thursday.

On his first full day in the White House, U.S. President Joe Biden on Thursday took aim at his number one priority -- the raging Covid-19 pandemic and stumbling efforts to vaccinate Americans.