viroLOGICAL

Avian influenza, commonly known as bird flu, has become a global concern once again. In this episode, Florian Krammer explains the biology of influenza A viruses, how subtypes like H5N1 are defined by their hemagglutinin and neuraminidase proteins, and why segmented genomes allow these viruses to reassort and evolve. He outlines the difference between low and highly pathogenic avian influenza, the molecular basis of increased virulence, and the historical spread of H5N1 since the late 1990s.

In this episode of viroLOGICAL, Florian Krammer explains the measles virus, one of the most contagious human pathogens known. He discusses the structure and transmission of the virus, its airborne spread, and why its very high R number makes outbreaks difficult to control.

In this episode of viroLOGICAL, Florian Krammer explains rabies, one of the deadliest infectious diseases known. He describes what the rabies virus is, how it is transmitted mainly through bites and scratches, and why symptoms almost always lead to death once they appear.

In the first episode of viroLOGICAL, Florian Krammer takes a fundamental look at viruses: What are viruses and why are they not considered living organisms? He explains how viruses replicate inside host cells, how they were first discovered, and why their size, shape and genetic makeup can differ so widely.