infectious diseases
Illnesses that spread
Infectious diseases are illnesses caused by pathogens—bacteria, viruses, fungi, or parasites—that can spread from one person to another or from animals to humans.
The term distinguishes these conditions from genetic disorders, cancers, or injuries: Cholera and tuberculosis are infectious diseases.
Some spread through direct contact, others through air, water, food, or insect vectors.
- epidemiologyStudy of disease spread
- germ theoryDisease caused by microorganisms
- diseasesBodily disorders or malfunctions
- outbreakSudden eruption of trouble
- sexually transmitted diseasesInfections spread through intercourse
bacteria · pathogens · communicable diseases · plague · superspreader · contact tracing · quarantine measures · public health crisis · pandemic preparedness · influenza · viruses · flu · fever · fever dream · contamination · cholera · sneeze · vaccine
- public healthimmunization, health education, epidemiology, community health, health policy
- Health Hazardsair pollution, asbestos, carbon monoxide, chemical spills, cholera
- medical vocabularymedical dictionary, anatomical terms, clinical terms, abbreviations, body systems
- disordersADHD, disorder, anxiety, dysfunction, autism
- healthcaredoctors, nurses, hospitals, hospital, clinic
- infectious diseasescholera, anthrax, malaria, measles, flu
infectious diseaseshereditary diseases
Conditions passed through genes
autoimmune diseases · metabolic disorders · degenerative diseases · nutritional deficiencies · occupational diseases
infectious diseaseschronic diseases
Prolonged medical conditions
chronic conditions · cancer · diabetes · heart disease · lifestyle diseases
infectious diseaseschronic diseases
Prolonged medical conditions
chronic conditions · degenerative diseases · terminal illness
disease, infect, infection, diseased, infected, infectious, disinfected, infecting, infections