Three viruses (dengue, chikungunya and Zika) spreading in Mexico

In 2016, reported cases of people infected with dengue, chikungunya or Zika virus increased throughout the year. The state of Veracruz reported the largest number of Zika cases, but cases were also reported in Guerrero, Yucatán, and Chiapas. Chikungunya fever was reported from Baja California Sur, Veracruz, and Tamaulipas.

The number of people infected with dengue virus (almost 17,000 reported cases) was far greater than the other 2 viruses combined. The most affected states were Guerrero, Veracruz, and Jalisco.

Visit our Health Library for more information on exposure to and the prevention of Chikungunya Fever, Dengue Fever, and Zika Fever.

Advice For Travellers

The absence of reports from other areas does not mean that there is no dengue fever transmission there. The risk of exposure will vary from place to place and may be high in many localities.

All travellers to areas where these viruses are active can reduce their risk of exposure by taking all necessary precautions to avoid mosquito bites. Many persons with dengue, chikungunya or Zika infections do not seek medical care and are not reported to health authorities. There may be many more cases in the community than the reports indicate.