A small survey found that stress among pregnant women has tripled since the start of the coronavirus pandemic.
The Spanish region of Galicia has effectively banned smoking in public places over concerns it increases the risk of Covid-19 transmission.
A drug-resistant strain of the parasite that causes malaria has been identified by scientists in Rwanda.
A trial investigating the drug hydroxychloroquine as a preventative treatment against Covid-19 may never find out if it's effective, say scientists involved.
It is little more than six months since the World Health Organization (WHO) declared the arrival of a new virus a global emergency.
People with symptomless Covid-19 can carry as much of the virus as those with symptoms, a South Korean study has suggested.
Continuing chemotherapy and immunotherapy treatment in cancer patients with Covid-19 is not a risk to their survival, a study suggests.
The number of deaths from coronavirus in Iran is nearly triple what Iran's government claims, a BBC Persian service investigation has found.
New 90-minute tests that can detect coronavirus and flu will be rolled out in care homes and laboratories from next week.
Russian health authorities are preparing to start a mass vaccination campaign against coronavirus in October, the health minister has said.
