Seasonal disease, is one of the problems with high rates of morbidity and mortality. Disease events due to seasonal changes always occur throughout the year.
Influenza is a common disease, and currently the pre-emptive and curative efforts are still not comprehensive.
On the other hand, re-emerging disease is also a threat that often arises and a certain period and period. Hemorrhagic and Leptospirosis infections become 2 diseases that can manifest from mild to life threatening.