Question

Which of the following does not spread disease?

• A. Entamoeba coli
• B. Entamoeba histolytica
• C. Entamoeba gingivalis
• D. Plasmodium ovale

Answer 1

The correct option is A Entamoeba coli

Entamoeba coli is a non-pathogenic species of Entamoeba that frequently exists as a commensal parasite in the human gastrointestinal tract. Entamoeba histolytica is a protozoan parasite responsible for a disease called amoebiasis. It occurs usually in the large intestine. Entamoeba gingivalis is a protozoan endoparasite, residing in the tartar and pus pockets of teeth of pyorrhoea infected human beings. Plasmodium ovale is a protozoan parasite which causes ovale or tertian malaria.

Thus, the correct answer is option A.