Malaria Risk in Yunnan

China General Health Risks:

Malaria is transmitted by the night-time – dusk to dawn – biting female Anopheles mosquito.

Risk is present in the country; areas of risk are specified:

China: Northern China is malaria risk free.

Central China: Low risk exists from May to December in rural areas of the following provinces (main cities in brackets are risk free): Anhui (Hefei), Henan (Zhengzhou), and Hubei (Wuhan). P. vivax malaria is predominant in these areas. Travellers to rural areas of these provinces should take anti-mosquito bite measures from dusk to dawn.

Main vectors: A. minimus, A. sinensi 

Southwestern China, including the southeastern tip of Tibet: Risk is present throughout the year in the southwestern part of Yunnan Province bordering Myanmar | Burma: Dehong Dai and Jingpo, Baoshan, Lincang, Pu’er and Xishuangbanna Prefectures.

Risk is also present in the southeastern part of Tibet in the area bordering India (Arunachal Pradesh state) in the county of Mêdog (Motuo) along the lower Yarlung Tsangpo (Zangbo) river and canyon.  P. falciparum malaria is predomi­nant in these areas. Travellers should take atovaquone-proguanil or doxycycline antimalarial medications if visiting these areas.

Hong Kong is risk free.

Macau is risk free. 

Malaria risk is present below the altitude of : 1500 meters

High risk months for Malaria are: January to December

Malaria transmission vector(s): A.minimusA.sinensis

Incidence of Plasmodium falciparum Malaria: 11% 
Of the five species of human malaria parasites, Plasmodium falciparum is the most dangerous. The remaining percentage represents malaria infections that may be caused by one or more of the following parasites: Plasmodium vivax, Plasmodium ovale, Plasmodium malariae, and Plasmodium knowlesi.

Areas with drug resistant Malaria: Multidrug resistant P. falciparum malaria is present in Yunnan province and the southeastern tip of Tibet.

Suppressive Medication Guide

All malaria infections are serious illnesses and must be treated as a medical emergency. In offering guidance on the choice of antimalarial drugs, the main concern is to provide protection against Plasmodium falciparum malaria, the most dangerous and often fatal form of the illness.

Regardless of the medication which has been taken, it is of utmost importance for travellers and their physician to consider fever and flu-like symptoms appearing 7 days up to several months after leaving a malarious area as a malaria breakthrough. Early diagnosis is essential for successful treatment. 

In addition to the suggested antimalarial medication, use a mosquito bed net and effective repellents to avoid the bite of the nocturnalAnopheles mosquito.
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