Zika virus - Statistics & Facts

Zika virus - Statistics & Facts

Statistics and facts about the Zika virus disease

The Zika virus is spread mostly by bites from infected Aedes aegypti or Aedes albopictus mosquitoes, but mother-to-child and sexual transmissions are also possible. Infected persons often have symptoms such as a low-grade fever, red eyes, joint pain, rash, and sometimes muscle pain and headache. As there are many other diseases with similar symptoms, there was no special attention paid to Zika until more recently. This rapidly changed after the latest outbreak in Brazil in 2015, when increased evidence pointed to infections with this virus which could cause serious birth defects and neurological problems. Among the most serious fetal brain damages due to Zika, microcephaly is perhaps the best-known.


The latest outbreak began in early 2015 in Brazil, although the first cases seemed to have already appeared in 2014. One theory is that the virus arrived during the 2014 Football World Cup. At the moment, Zika virus infections have been reported on all continents, however, the Americas are the most at-risk-part of the world. As of July 2016, some 93.4 million people were at risk of getting infected with Zika in Latin America and the Caribbean alone, of which some 1.7 million were childbearing women.

Right now, Brazil is by far the most affected country, reporting the most cases of people infected with the Zika virus. As of March 2017, some 2,386 confirmed cases of Zika-related microcephaly in newborns were already reported. The number of cases of microcephaly among newborns in Brazil rose from 147 cases in 2014 to over 3,500 in 2015, however not all such cases have been linked to the Zika virus.

In the U.S., there were over 4,000 Zika virus infections reported up to January 2017. Most of the infection cases in the U.S. were associated with traveling persons. According to a survey, over half of Americans are concerned about a possible Zika epidemic in the United States.



Picture: freeimages.com / Rajaram R

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Facts on Zika virus disease
Global epidemic overviewValuesStatistic
Number of countries reporting mosquito-borne Zika virus transmission as of March 201784 Details →
European country with the most cases of Zika virus in 2016France Details →
Country with the most cases of microcephaly and/or CNS malformation potentially linked to Zika as of 2017Brazil Details →
Number of people in Asia who were living in areas environmentally suitable for Zika virus transmission as of 20151.4bn Details →
Estimated foregone income as a result of the Zika virus epidemic in Mexico744m USD Details →
BrazilValuesStatistic
Total cases of microcephaly among newborns in 20153,530 Details →
Number of confirmed cases of congenital syndrome associated with Zika virus in Brazil as of 20172,386 Details →
Leading birth defect among infants in Brazil born with microcephaly as of 2015Abnormal head size Details →
Region with the most communities reporting cases of microcephaly and/or CNS malformation as of 2016Northeast Details →
Number of reported cases of microcephaly and/or CNS malformation in Rio de Janeiro as of 201658 Details →
U.S. perspectiveValuesStatistic
State reporting the most cases of travel-associated Zika virus from 2015 to 2017New York Details →
State reporting the most cases of locally acquired Zika virus from 2015 to 2017Florida Details →
Percentage of adults who used mosquito repellent to prevent Zika virus as of 201650% Details →
Percentage of adults who knew only a little about the Zika virus as of 201625% Details →
Percentage of adults who were very concerned about a Zika virus epidemic in the U.S. as of 201616% Details →


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