The current onset of warmer temperatures in the northern hemisphere, should not be used as a trigger to relax measures to halt the spread of coronavirus, the UN weather agency cautioned on Thursday.

A lot more research is needed into the “constellation” of sometimes debilitating symptoms among people who’ve recovered from Covid-19, the World Health Organization (WHO) said on Friday.

A Chinese COVID-19 vaccine candidate based on the inactivated whole SARS-CoV-2 virus is safe and elicits an antibody response, according to the findings from a small early-phase randomised clinical trial published Thursday in The Lancet Infectious Diseases journal.

A Brazilian study released Thursday says Covid-19 can infect brain tissue and affect the structure of the cortex, a region of the brain responsible for functions such as memory, consciousness, and language.