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Leishmania donovani
Leishmania donovani (also referred to as L. donovani) Leishmania donovani Details: Type: Protozoan parasite (single-celled organism) Category: Intracellular protozoa (hemoflagellate parasite) Transmission Type: Vector-borne (sandfly transmission) Primary Target Area: Reticuloendothelial system (liver, spleen, bone marrow) Lifecycle Form: Exists in two main forms — promastigote (infective form transmitted by sandflies) and amastigote (intracellular form within human ... Read more
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Trypanosoma cruzi
Trypanosoma cruzi (also referred to as T. cruzi) Trypanosoma cruzi Details: Type: Protozoan parasite (single-celled organism) Category: Blood and tissue protozoa (hemoflagellate parasite) Transmission Type: Vector-borne, congenital, bloodborne, foodborne Primary Target Area: Bloodstream, heart tissue, digestive tract (esophagus and colon) Lifecycle Form: Exists in multiple forms — trypomastigote (circulating infective form), amastigote (intracellular replicative form), ... Read more
Toxoplasma gondii
What Is Toxoplasma gondii? Toxoplasma gondii is a microscopic, single-celled parasite that can infect almost any warm-blooded animal, including humans. Cats are its only definitive host, meaning the parasite can only complete its life cycle inside a cat. According to the CDC, toxoplasmosis is one of the most common parasitic infections worldwide, though most healthy ... Read more
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Plasmodium knowlesi
Plasmodium knowlesi Plasmodium knowlesi (also referred to as P. knowlesi) Plasmodium knowlesi Details: Type: Protozoan parasite (single-celled organism) Category: Blood parasite (malarial parasite) Transmission Type: Vector-borne (mosquito transmission) Primary Target Area: Red blood cells (circulatory system) Lifecycle Form: Exists in multiple stages — sporozoite (infective form transmitted by mosquitoes), liver stage (hepatic schizont), and blood ... Read more
Plasmodium ovale
Plasmodium ovale (also referred to as the tertian malaria parasite) Plasmodium ovale Details: Type:Single-celled parasitic protozoan Category:Blood & tissue protozoa Transmission Type:Mosquito-borne Primary Target Area:Liver cells and red blood cells Lifecycle Form:Exists in multiple forms — sporozoites (infective form), merozoites (blood-stage replicating form), gametocytes (sexual form), and hypnozoites (dormant liver stage causing relapse) Incubation Period:Symptoms ... Read more
Plasmodium malariae
Plasmodium malariae (also referred to as the quartan malaria parasite) Giardia lamblia Details: Type:Single-celled parasitic protozoan Category:Blood & tissue protozoa Transmission Type:Mosquito-borne Primary Target Area:Red blood cells Lifecycle Form:Exists in multiple forms — sporozoites (infective form), merozoites (blood-stage replicating form), gametocytes (sexual form). Incubation Period:Symptoms usually appear 18–40 days after infection, though low-level infections can ... Read more
Plasmodium vivax
Plasmodium vivax (also referred to as the benign tertian malaria parasite) Plasmodium vivax Details: Type:Single-celled parasitic protozoan Category:Blood & tissue protozoa Transmission Type:Mosquito-borne Primary Target Area:Liver cells and red blood cells Lifecycle Form:Exists in multiple forms — sporozoites (infective form), merozoites (blood-stage replicating form), gametocytes (sexual form), and hypnozoites (dormant liver stage causing relapse) Incubation ... Read more
Plasmodium falciparum
Plasmodium falciparum (also referred to as the malignant or tropical malaria parasite) Plasmodium Falciparum Details: Type:Single-celled parasitic protozoan Category:Blood & tissue protozoa Transmission Type:Mosquito-borne (via infected Anopheles mosquitoes) Primary Target Area:Liver cells and red blood cells Lifecycle Form:Exists in multiple forms — sporozoites (infective form injected by mosquito), merozoites (blood-stage replicating form), and gametocytes (sexual ... Read more
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Microsporidia
Microsporidia Details: Type:Obligate intracellular, spore-forming parasites Category:Intestinal and systemic protozoa-like/fungal parasites Transmission Type:Fecal‑oral Primary Target Area:Primarily the small intestine, but it can affect multiple organs, such as the eyes, muscles, and respiratory tract Lifecycle Form:Exists in two forms — environmentally resistant spores (infective form) and intracellular replicative forms (meronts/trophozoites) Incubation Period:Symptoms usually appear within a ... Read more
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Isospora Belli
Isospora belli (also referred to as Cystoisospora belli) Isospora Belli Details: Type:Protozoan parasite (single-celled organism) Category:Intestinal protozoa Transmission Type:Fecal‑oral Primary Target Area:Small intestine Lifecycle Form:Exists in two forms — oocyst (infective form) and sporozoite/trophozoite (active form inside the host) Incubation Period:Symptoms typically appear 1–2 weeks after exposure, though timing can vary. Transmission:Isospora belli spreads when ... Read more
Frequently Asked Questions
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