Question

infectious diseases definition

Answer 1

Infectious diseases are illnesses caused by pathogenic microorganisms such as bacteria, viruses, fungi, or parasites that can be transmitted, either directly or indirectly, from one individual to another, or from animals to humans. These diseases can spread through various means, including airborne transmission, contact with contaminated surfaces, vector-borne transmission (e.g., through insects), and ingestion of contaminated food or water. The severity and symptoms of infectious diseases vary widely, ranging from mild to life-threatening conditions. Prevention and control measures include vaccination, proper hygiene practices, sanitation, and, when necessary, the use of antimicrobial medications.