Pandemics are scourge of humanity for the last many centuries. It is deﬁned as epidemic of infectious disease, which spreads worldwide. Major pandemics have been diseases such as smallpox, tuberculosis, cholera, and plague which was responsible for 75-200 million deaths in 14th century, the plague continued as various epidemics until end of 19th century.
|Publisher Name :||Ziauddin University|
- Ejaz Vohra
- Department of Clinical Medicine, Ziauddin University, Karachi, Pakistan