IMMUNOLOGY

Detailed explanation-1: -A pathogen is defined as an organism causing disease to its host, with the severity of the disease symptoms referred to as virulence. Pathogens are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.

Detailed explanation-2: -Viruses and bacteria have a number of characteristics in common. Both are microscopic. Although both vary in size, they are too small to be visible to the naked eye. Both carry genetic material and both lack membrane-bound organelles.

Detailed explanation-3: -Anthrax. Brucellosis. Buruli ulcer. Capnocytophaga canimorsus. Elizabethkingia infections. Glanders (Burkholderia mallei) Hansen’s disease (Leprosy) Leptospirosis. More items

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