The US has recorded more than 250,000 deaths from Covid-19, a bleak marker as cases soar once again across the country.
The coronavirus vaccine developed by Pfizer and BioNTech appears to protect 94% of adults over 65 years old.
A new vaccine that protects against Covid-19 is nearly 95% effective, early data from US company Moderna shows.
The Brazilian clinical trial for a high-profile Chinese Covid-19 vaccine has been suspended after health authorities reported a “severe adverse” incident.
The Bauchi State Primary Healthcare Development Agency (BSPHCDA) says an outbreak of yellow fever has occurred in Ganjuwa Local Government Areas (LGA) of the state with eight deaths and their samples testing positive.
The first effective coronavirus vaccine can prevent more than 90% of people from getting Covid-19, a preliminary analysis shows.
England World Cup winner and Manchester United legend Sir Bobby Charlton has been diagnosed with dementia.
Australia has recorded its first day of no local cases of Covid-19 in almost five months.
Prime Minister Boris Johnson has announced a second national lockdown for England to prevent a “medical and moral disaster” for the NHS.
South Africa’s President Cyril Ramaphosa is self-quarantining after a guest at a dinner he attended later tested positive for Covid-19.