India’s coronavirus crisis showed scant sign of easing on May 11, with a seven-day average of new cases at a record high and international health authorities warning the country’s variant of the virus poses a global concern.

Japanese health authorities are concerned that variants of the coronavirus are driving a nascent fourth wave in the pandemic with just 109 days remaining until the Tokyo Olympics.

The United States crossed 30 million coronavirus cases on March 24, according to a Reuters tally, as states accelerate the vaccination process by lowering age limits.

The World Health Organization asked six African countries to be alert for possible Ebola infections, as Guinea on Feb. 16 reported new cases and Democratic Republic of Congo said its new infections were a resurgence of a previous outbreak.

Severe Covid-19 infections are beginning to abate in many parts of the United States even as the death toll mounts, signaling an end to the pandemic’s post-holiday surge and prompting some states to ease public health restrictions.

A U.S. Centers for Disease Control and Prevention advisory panel on Dec. 12 recommended the nation’s first COVID-19 vaccine, helping clear the way for public health authorities to begin the largest vaccination campaign in U.S. history.