MCQ IN MEDICINE

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: -Pathogenic organisms. Similar term(s): pathogen. Definition: Organisms, including bacteria, viruses or cysts, capable of causing diseases (typhoid, cholera, dysentery) in a host (such as a person).

Detailed explanation-3: -Coughing or sneezing can cause pathogens to spread through tiny droplets in the air. These droplets can contain microorganisms, which other people breathe in. Microorganisms can also travel straight into the gut when a person consumes contaminated food or water. Bites from infected insects can also spread disease.