influenza
Findings
No curated finding names influenza yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
An acute viral infection of the respiratory tract, occurring in isolated cases, in epidemics, or in pandemics; it is caused by serologically different strains of viruses (influenzaviruses) designated A, B, and C, has a 3-day incubation period, and usually lasts for 3 to 10 days. It is marked by inflammation of the nasal mucosa, pharynx, and conjunctiva; headache; myalgia; often fever, chills, and prostration; and occasionally involvement of the myocardium or central nervous system.
Definition from the Mondo Disease Ontology (MONDO:0005812), read 2026-09-29. CC BY 4.0.
Features
2 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, hp/releases/2026-09-01.
- HeadacheMondoHP:0002315
- Muscle weaknessMondoHP:0001324
Where it sits
- Narrower terms (2)
Other names
6 names
Resolves to: influenza
- Also called
- fluinfluenza infectionInfluenza with other manifestationsorthomyxoviridae caused disease or disorderorthomyxoviridae disease or disorderorthomyxoviridae infectious disease