1. Within a few years four species of Plasmodium had been recognized, responsible for clinically distinct variants of malaria.

2. The idea goes some way to explaining why some individuals with red cell mutations are immune to Plasmodium infection.

3. Although plasmodia are ultimately responsible for malaria and its deadly consequences, the disease spreads through mosquito bites.

4. The ultrastructure of plasmodia and zoosporangia of polymyxa graminis was described.

5. ADCC change was related with the quantity of plasmodia inoculated intraperitoneally in early period of infection.

6. Methods Immunoenzymatic staining and triple antigen glass slide were adopted for immunoassay of schistosomiasis, malaria and filariasis, as well as blood test of plasmodia.

7. However, the infected mice challenged with the heterologous strain of plasmodia were died completely.

8. The review highlights the relationship of NO with schistosome, plasmodia, toxoplasm, Eimeria and the mechanism of its effects may be involved.