H1N1 is an influenza virus subtype.


The hepatitis B virus (HBV) is a coated DNA virus that causes hepatitis B infection.


The hepatitis C virus (HCV) causes inflammation of the liver.

Helicobacter pylori

Helicobacter pylori is a Gram-negative bacterium causing inflammation and ulcers in the gastrointestinal tract.


Hepatitis is an infection of the liver, which, in most cases, is caused by hepatitis viruses.

HepNet Study House

The HepNet Study House, established by the German Liver Foundation, is a virtual house where all cooperation in the field of clinical studies on acute and chronic viral hepatitis merges.


HIV is the human immunodeficiency virus, which infects important cells of the human immune system. In an HIV infected person, the immunodeficiency disease AIDS can develop.

Hospital pathogens

Hospital pathogens are microorganisms that patients can get infected with in connection with hospital treatment.

Host control

Host control comprises the immune reactions of an infected host to an infection.

Humanized mice

Humanized mice carry components of the human immune system.