Confirmed COVID-19 cases have surpassed 55.7 million globally, with over 1.3 million fatalities and more than 35 million recoveries, according to the latest tally from Johns Hopkins University.

Here is what we know:

The Chinese mainland registered on Tuesday eight new cases - one locally transmitted in northern Tianjin Municipality and seven from overseas.

China's Sinovac COVID-19 vaccine can induce quick antibody responses and is suitable for emergency use, a study has found.

Chinese foreign ministry said five COVID-19 vaccines in final stages of testing in overseas. 

The total number of infections in the U.S. surpassed 11.3 million, as the country's death toll is approaching 250,000. Republican Senator Chuck Grassley of Iowa, who is 87 years old, said he tested positive for the novel coronavirus on Tuesday.

Pfizer Inc said that final results from the late-stage trial of its COVID-19 vaccine show it is 95 percent effective. 

Japan reported 2,189 new cases, renewing a record number of daily infections and exceeding the 2,000 mark for the first time.