Tropical Diseases and Cure

Viral, Bacterial and Fungal Infections

Viral infections are caused by a virus. Millions of types of virus are thought to exist, but only 5,000 types have been identified. Viruses contain a small piece of genetic code. They are protected by a coat of protein and fat. Not all viruses destroy their host cell. Some of them change the function of the cell. In this way, viruses such as human papillomavirus (HPV) or Epstein-Barr virus (EBV) can lead to cancer by forcing cells to replicate in an uncontrolled way.

Bacteria can live in almost any kind of environment, from extreme heat to intense cold, and some can even survive in radioactive waste.There are trillions of strains of bacteria, and few of these cause diseases in humans. 

There are approximately 51 million species of fungus.Many fungal infections will appear in the upper layers of the skin, and some progress to the deeper layers. Inhaled fungal spores can lead to systemic fungal infections, such as thrush, or candidiasis.