April 24, 2020

Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus. Most people…

The human immunodeficiency virus (HIV) is a retrovirus that attacks cells of the immune system…

Malaria is caused by a parasite, Plasmodium, which is transmitted by mosquitoes that carry it.…

It is an inflammation of the liver, most often caused by a viral infection. There…