Many diseases including malaria, dengue, meningitis - just a few examples - these are what we call climate-sensitive diseases, because such climate dimensions for rainfall, humidity and temperature would influence the epidemics, the outbreaks, either directly influencing the parasites or the mosquitoes that carry them.

Doctors and nurses, with their training and their experiences, they would be able to detect unusual patterns of disease. That's why we say it is important for every country to have a proper surveillance system. The function of the surveillance system is to detect unusual patterns of diseases.

The WHO is the lead agency in health in the United Nations system, and clearly we have very important functions to play.

Tobacco is the only industry that produces products to make huge profits and at the same time damage the health and kill their consumers.

New diseases like SARS and bird flu cause anxiety in the community. People get worried, some to the extent that it even affects their health. You feel very sad, and yet you must carry on and maintain your cool in very trying and difficult moments. You have to tough it out.

Avoid activities outdoor. If you like to take an afternoon nap sleep under bed net. So these are measures that can be done to minimize [the] chance of infection [with Zika virus].

I am personally overseeing changes that include the establishment of a global health emergency workforce.