Zika Virus The Latest Advice & Updates World Health Organisation


Singapore joins a long list of countries with reported Zika Virus cases . A 47-year-old Malaysian woman working in the city-state was confirmed with the virus, but was “well and recovering.” The patient, who had not travelled to Zika-affected areas recently, had developed symptoms two days earlier and was referred to the CDC by a general practitioner the day after, the Ministry of Health (MOH) and National Environment Agency (NEA) said in a statement. She is hospitalised but is recovering.



Countries and territories reporting mosquito-borne Zika virus infections for the first time in the past week: None

Countries and territories reporting microcephaly and other central nervous system (CNS) malformations potentially associated with Zika virus infection for the first time in the past week: Costa Rica, Dominican Republic and Haiti

The 2016 Summer Olympics held in Rio de Janeiro ended on 21 August. From the reports WHO received from national health authorities, there have so far been no laboratory confirmed cases of Zika virus in anyone associated with the Olympics. 


Overall, the global risk assessment has not changed.

Zika virus continues to spread geographically to areas where competent vectors are present.There are no additional major developments this week

How is Zika transmitted?

Zika can be transmitted through

  • Mosquito bites
  • From a pregnant woman to her fetus
  • Sex
  • Blood transfusion (very likely but not confirmed) 

Advice before travelling to Zika affected areas

Travellers to areas with Zika virus outbreaks should seek up-to-date advice on potential risks and appropriate measures to reduce the possibility of exposure to mosquito bites and sexual transmission of Zika.

While in Zika-affected areas

Men and women should practice safer sex (including the consistent use of condoms) or abstinence to prevent Zika virus infection, human immunodeficiency virus (HIV), other sexually transmitted infections, and unwanted pregnancies.

Prevent mosquito bites during the trip by following these measures:

  • wear clothing – preferably light coloured – that covers as much of the body as possible;
  • use insect repellent: repellents may be applied to exposed skin or to clothing, and should contain DEET, (diethyltoluamide) or IR 3535 or Icaridin. Repellents must be used in strict accordance with the label instructions;
  • use physical barriers such as regular or mesh screens or insecticide treated netting materials on doors and windows , or closing doors and windows; and
  • sleep under mosquito nets, especially during the day, when Aedes mosquitoes are most active.

Upon return home

To prevent the onward transmission of Zika and adverse pregnancy and fetal outcomes, all returning travellers should practice safer sex, including through the correct and consistent use of condoms, or abstaining from sex for at least 8 weeks. If men experience symptoms (rash, fever, arthralgia, myalgia or conjunctivitis) then they should adopt safer sexual practices or consider abstaining for at least 6 months. Sexual partners of pregnant women should practice safer sex or abstain for at least the duration of the pregnancy.

More advice at World Health Organisation 

How do you know if you have been infected with Zika

Many people infected with Zika virus won’t have symptoms or will only have mild symptoms. The most common symptoms of Zika are

  • Fever
  • Rash
  • Joint pain
  • Conjunctivitis (red eyes)

Other symptoms include:

  • Muscle pain
  • Headache

How long symptoms last

Zika is usually mild with symptoms lasting for several days to a week. People usually don’t get sick enough to go to the hospital, and they very rarely die of Zika. For this reason, many people might not realize they have been infected. Symptoms of Zika are similar to other viruses spread through mosquito bites, like dengue and chikungunya.

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