Classify Sporozoa according to 1) taxonomy 2) habitat in man 3) pathogenicity?

1) Taxonomy: Sporozoa is a phylum of protozoa that includes organisms such as Plasmodium (the causative agent of malaria) and Toxoplasma gondii.

2) Habitat in man: Sporozoa typically inhabit the cells of their host organisms, including humans. For example, Plasmodium species reside in the red blood cells of humans during the blood stage of malaria infection.

3) Pathogenicity: Many Sporozoa are pathogenic to humans and other animals. For example, Plasmodium species cause malaria, which can be a severe and potentially fatal disease if left untreated. Toxoplasma gondii can cause toxoplasmosis, which can be particularly dangerous for pregnant women and individuals with weakened immune systems.

1) Taxonomy

- Class: Sporozoa
- Subclass: Coccidia
- Order: Eucoccidia
- Family: Eimeriidae
- Genus: _Plasmodium_, _Toxoplasma_, _Cryptosporidium_, _Isospora_, _Sarcocystis_

2) Habitat in Man

- Erythrocytes: _Plasmodium falciparum_, _P. vivax_, _P. ovale_, _P. malariae_
- Intestinal epithelium: _Isospora belli_, _Cyclospora cayetanensis_
- Macrophages: _Toxoplasma gondii_, _Cryptosporidium parvum_
- Skeletal and cardiac muscle: _Sarcocystis_ species
- Brain: _Encephalitozoon_ species, _Microsporidium_ species

3) Pathogenicity

Malaria (Plasmodium species)

- Life-threatening disease with high mortality rates
- Clinical symptoms: fever, chills, sweating, headache, muscle aches, anemia

Toxoplasmosis (Toxoplasma gondii)

- Can cause congenital infections in pregnant women, leading to miscarriage, stillbirth, or birth defects
- In immunocompromised individuals, can cause encephalitis (brain infection)

Cryptosporidiosis (Cryptosporidium parvum)

- Causes diarrhea, abdominal pain, and nausea
- Can lead to severe dehydration and malnutrition

Isosporiasis (Isospora belli)

- Causes diarrhea, abdominal pain, and weight loss
- Can be self-limiting or chronic

Sarcocystosis (Sarcocystis species)

- Most commonly causes muscle pain and weakness
- In some cases, can cause heart failure or brain damage

Encephalitozoonosis (Encephalitozoon species)

- Can cause encephalitis, particularly in immunocompromised individuals
- Symptoms can include confusion, seizures, and weakness

Microsporidiosis (Microsporidium species)

- Can cause a variety of symptoms, including diarrhea, abdominal pain, fatigue, and respiratory problems
- Particularly common in immunocompromised individuals