Parasitology

Parasitology is the branch of biology that studies parasites, their hosts, and the interactions between them. It encompasses various aspects, including:

Types of Parasites: Parasitology examines different kinds of parasites, such as protozoa (single-celled organisms), helminths (worms), and ectoparasites (like fleas and ticks).
Host-Parasite Interactions: This field investigates how parasites interact with their hosts, including the effects of parasitism on host health, behavior, and ecology.
Life Cycles: Parasitologists study the life cycles of parasites, including how they reproduce, develop, and spread among hosts.
Disease: Many parasites are responsible for diseases in humans, animals, and plants. Parasitology addresses the diagnosis, treatment, and prevention of these parasitic diseases.
Ecology and Evolution: The field also explores the ecological roles of parasites and their evolutionary adaptations.

Overall, parasitology is essential for understanding the biology of parasites and their impact on health and ecosystems.

Subcategories

Loa loa (African Eye Worm): Morphology, Life Cycle, Symptoms, Diagnosis, Treatment and Prevention

By Sourav Pan (M.Sc. in Microbiology) • Published on April 14, 2024 • Last Updated July 30, 2026 • 41 min read

Loa loa Life cycle, Morphology, Pathogenesis, Diagnosis, Transmission, Treatment

Loa loa is the African eye worm that causes loiasis. Learn its morphology, life cycle, transmission, symptoms, diagnosis, treatment and prevention.

Fascioliasis: Causes, Life Cycle, Symptoms, Diagnosis, Treatment and Prevention

By Sourav Pan (M.Sc. in Microbiology) • Published on April 8, 2024 • Last Updated July 29, 2026 • 40 min read

Fascioliasis: Causative agent, Life cycle, Symptoms, Treatment.

Fascioliasis is an infectious disease caused by Fasciola parasites, which are flatworms referred to as liver flukes. The adult (mature) flukes are found in the bile ducts and liver of infected people and animals, such as sheep and cattle. In general, fascioliasis is more common in livestock and other animals than in people.

Schistosomiasis – Life cycle, Symptoms, Treatment, Prevention

By Sourav Pan (M.Sc. in Microbiology) • Published on April 8, 2024 • Last Updated July 29, 2026 • 42 min read

Schistosomiasis Life cycle, Symptoms, Treatment, Prevention.

Schistosomiasis also termed snail fever or bilharzia is a disease caused by parasitic flatworms called schistosomes. Infection with Schistosoma mansoni, S. haematobium, and S. japonicum causes illness in humans; less commonly, S. mekongi and S. intercalatum can cause disease.

Pathogen Virulence Factors – Types, Mechanisms and Examples

By Sourav Pan (M.Sc. in Microbiology) • Published on April 6, 2024 • Last Updated July 28, 2026 • 32 min read

Pathogenicity is the capacity of a microorganism to cause disease in a host. Virulence refers to the intensity or degree of pathogenicity. The virulence varies among different microorganisms and also among strains of same species. Virulence factors are the structures, substances or properties which help a pathogen to cause infection. These factors help the microorganism … Read more