Advancements in genetic engineering have led to the development of genetically modified mosquitoes that are resistant to dengue virus infection.

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Skipper Kane Williamson is quarantined from his team-mates after going down with a virus which ruled him out of the second Test against India.

Rory McIlroy has pulled out of the Olympic Games in Rio because of concerns about the Zika virus.

Rio de Janeiro's governor declares a state of financial emergency and requests federal funds to help fulfill obligations for public services during the Olympics that start August 5.

Scientists find dangerous drug-resistant "super bacteria" off beaches in Rio de Janeiro that will host Olympic swimming events and in a lagoon where rowing and canoe athletes will compete when the Games start on August 5.

Australia captain Steven Smith and his team have been warned about risks associated with the Zika virus ahead of their tour of the West Indies next month.

Australia's Olympians will be issued with free super-strength condoms in Rio to minimise any infection from the Zika virus, officials say on Monday.

Medical researchers in Bangladesh have detected the first case of Zika virus, ringing alarms for the authorities to take strong preventive measures at the early stage.

The Zika virus may be particularly adept at entrenching itself in parts of the body that are shielded from the immune system, making it harder to fight off and possibly lengthening the timeframe in which it can be transmitted, top US experts say.

Brazilian President Dilma Rousseff vows to "win the war" against the Zika virus, but some experts criticized her government's response and warned the Olympics could fuel the disease's spread.

Researchers develop a new test that can detect every known human virus that currently or previously infected a person from a single drop of blood.

The Ebola virus has been detected in the eye of a US doctor who had already recovered from the illness.

A German biologist who offered €100,000 (£71,350; $106,300) to anyone who could prove that measles is a virus has been ordered by a court to pay up.

The first rapid blood test for Ebola has been approved for use by the World Health Organization.