The Nematodes
The Nematodes Thomas Cherian The phylum Nematoda constitutes one of the six classes included in the phylum Aschelminthes. It is the second largest phylum in the animal kingdom, comprising an…
Toxoplasmosis
Toxoplasmosis Ruth Lynfield Folashade Ogunmodede Nicholas G. Guerina Toxoplasma gondii is an obligate intracellular protozoan parasite found in many animal species throughout the world. Nicolle and Manceaux observed the parasites…
Leishmaniasis
Leishmaniasis Murray Wittner Herbert B. Tanowitz The leishmaniases are vector-borne diseases caused by obligate intracellular protozoans or hemoflagellates of the genus Leishmania. The diseases affect the viscera, skin, and/or mucous…
Giardia Lamblia
Giardia Lamblia William J. Klish Giardia lamblia holds the distinction of being the first protozoan parasite to be recognized. It was described in a letter by van Leeuwenhoek of Delft,…
Cryptosporidiosis
Cryptosporidiosis Walter T. Hughes Cryptosporidiosis is a common enteric infection of humans and animals that is caused by the coccidian protozoan Cryptosporidium. The first human case was described in 1976….
Babesiosis
Babesiosis Christian C. Patrick Babesiosis is an emerging tick-borne disease that is caused by an intraerythrocytic protozoan manifesting in hemolysis in susceptible animals. The disease has been noted since biblical…
Entamoeba Histolytica
Entamoeba Histolytica Bradley Howard Kessler Amebiasis is defined as infection with Entamoeba histolytica, with or without overt clinical symptoms. Distribution of the disease is worldwide, affecting as much as 10%…
Miscellaneous Fungal Infections
Miscellaneous Fungal Infections Michael B. Smith Michael R. McGinnis Numerous reports have implicated soil-borne fungi as causative agents of fungal diseases in a variety of clinical settings. Because most soil-…
Sporotrichosis
Sporotrichosis Michael R. McGinnis Michael B. Smith Sporotrichosis is a chronic fungal infection typically limited to cutaneous and subcutaneous tissues. Dissemination of the infection is unusual. The causative agent is…
