MCQ IN MEDICINE

Detailed explanation-1: -Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms.

Detailed explanation-2: -Infectious diseases are caused by pathogens, which include bacteria, fungi, protozoa, worms, viruses, and even infectious proteins called prions. Pathogens of all classes must have mechanisms for entering their host and for evading immediate destruction by the host immune system.

Detailed explanation-3: -The main five categories of pathogens are viruses, bacteria, fungi, protozoa and helminths. Pathogens are infectious agents. They can enter the body by various means.

Detailed explanation-4: -Bacteria. Bacteria are microscopic pathogens that reproduce rapidly after entering the body. Viruses. Smaller than bacteria, a virus invades a host cell. Fungi. There are thousands of species of fungi, some of which cause disease in humans. Protists. Parasitic worms. 21-Aug-2020