Ebola has likely killed five people in Guinea after re-emerging in the country's south, health authorities said Tuesday, as Liberia announced it was closing their shared border to guard against the spread of the virus.

A Bangladeshi man who contracted a fever 19 months ago was infected with the Zika virus, the first confirmed case in the South Asian country, health authorities said Tuesday. 

The Bangladesh Institute of Epidemiology, Disease Control and Research tested blood samples from 101 patients previously thought to have dengue or other viral fevers, to see if any had been infected with Zika.

French authorities said Tuesday there was "a very strong suspicion" that the first case of microcephaly linked to the Zika virus had been detected on the Caribbean island of Martinique. 

The case would be the first on French territory of microcephaly, a birth defect thought to be caused by Zika, the mosquito-borne virus that has spread rapidly through South America. 

China's Food and Drug Administration has ordered local governments to track the whereabouts of poorly refrigerated and probably ineffective vaccines after police detained a woman thought to have sold nearly $100 million worth of the suspect products nationwide.

The scandal has reawakened longstanding concerns among the public over the safety of food and medicine. Nine pharmaceutical wholesalers believed to have sold the vaccines are being investigated.

Federal health officials have approved a new injectable drug to treat patients who have been exposed to the deadly toxin anthrax.

The Food and Drug Administration said it approved Anthim on Friday to treat inhalation anthrax, which can cause serious injury and death. The condition occurs when anthrax bacterial spores are inhaled.

The World Health Organization (WHO) has dispatched a team to Cape Verde to monitor a Zika virus outbreak following the west African archipelago's first recorded microcephaly case.

The WHO said in a statement released Friday it was sending a team of epidemiologists, maternal health specialists and communication staff at the request of the government.

A medical charity confirmed Friday its specialist Ebola clinic has reopened in rural southern Guinea to treat an infected woman and her child after the virus killed at least two of their relatives.

Some six million Americans have drinking water tainted with higher levels of lead than allowed by U.S. federal guidelines, the USA Today reported on Thursday.

With the nation focused on a major crisis in Flint, Michigan, where lead from aging pipes leeched into the municipal water supply, the newspaper launched an investigation which found higher than acceptable lead levels in about 2,000 water systems across the United States. 

Sixteen people have been disciplined in Singapore for a hepatitis C outbreak in the city-state's largest hospital last year that left at least seven patients dead, officials said Thursday.

The Ministry of Health said in a statement four of its staff holding director-level roles were given warnings and financial penalties for failing to step in early to prevent the disease from spreading. It did not say how much the penalties were.

Fleeing war and seeking safety, refugees are three times more likely to suffer from schizophrenia compared to the native-born population, according to a new Swedish study.

Refugees are already known to be at increased risk of post-traumatic stress disorder (PTSD) and depression, but the study, published Tuesday in the BMJ medical journal, also showed a higher risk of psychotic disorders such as schizophrenia.