Infectious diseases

This course is a part of NCLEX-RN, a 21-course Topic series from Khan Academy.

There's an intricate dance between humans, viruses, bacteria, molds, and even tiny worms! They want to survive and replicate just like humans do... and this is why they cause infections. From the flu to HIV, we’ll explore the underlying mechanisms that these creepy crawlies use to reproduce and spread.

This course contains 5 segments:

Sexually transmitted diseases

Polio

HIV and AIDS

Malaria

Tuberculosis

Almost one third of the entire world’s population is infected with Mycobacterium tuberculosis, the type of bacteria that causes TB. Although only a fraction of these people will actually become sick with the disease, in 2012, the World Health Organization reported 1.3 million TB related deaths. The good news is that health care workers and public health officials around the world have done a great job of helping to detect and treat the disease early. The bad news is that TB is developing drug resistance. Learn more about this ancient disease, that still plagues us in the modern-day.