Immunology

Virology and infectious diseases

Virology is the study of viruses and virus-like agents, comprising, but not limited to, their taxonomy, disease-producing properties, cultivation, and genetics. Virology is mainly measured a part of pathology or  microbiology

Infectious diseases are ailments that are instigated by organisms, usually microscopic in size, such as bacteria, viruses, fungi, or parasites that are passed, directly or indirectly, from one person to another. Humans will become ill by following exposure to an infected animal that contains a pathogenic organism that is accomplished of infecting humans.