Infectious diseases Introduction
Infectious Diseases are illnesses caused by pathogens such as bacteria, viruses, fungi, and parasites. Infectious diseases can spread directly (e.g., person-to-person contact) or indirectly (e.g., through vectors like insects or contaminated surfaces). Types of Pathogens Bacteria: Cause diseases like tuberculosis and strep throat. Viruses: Cause influenza, HIV/AIDS, and COVID-19. Fungi: Cause athlete’s foot and ringworm. … Read more