Infectious disease | Definition, Types, Causes | Britannica The agents of infection can be divided into different groups on the basis of their size, biochemical characteristics, or manner in which they interact with the human host The groups of organisms that cause infectious diseases are categorized as bacteria, viruses, fungi, and parasites
List of infectious diseases - Wikipedia This is a list of infectious diseases arranged by name, along with the infectious agents that cause them, the vaccines that can prevent or cure them when they exist and their current status Some on the list are vaccine-preventable diseases
National Foundation for Infectious Diseases Stay informed with the latest news, research, and resources from the National Foundation for Infectious Diseases (NFID), a trusted resource for up-to-date information on infectious diseases Discover expert insights, educational resources, and practical strategies to help protect yourself, your family, and your community
Other Respiratory Illnesses Going Around This page details respiratory illnesses from bacteria and viruses other than COVID-19, flu, and RSV It also shows the latest emergency department trends for conditions that various respiratory germs can cause
Infectious Diseases News -- ScienceDaily Mar 26, 2026 Long COVID remains a frustrating medical mystery, affecting up to 1 in 10 people long after the initial infection fades Now, scientists have uncovered a crucial clue hidden deep