Table 2. Case definitions for monkeypox in Nigeria .

Term	Definition
Suspected case	Acute illness with fever >38.3°C, intense headache, lymphadenopathy, back pain, myalgia, and intense asthenia followed 1–3 days later by a progressively developing rash often beginning on the face (most dense) then spreading elsewhere on the body, including soles of feet and palms of hand.
Probable case	Meets the clinical case definition; not laboratory confirmed, but has an epidemiological link to a confirmed case
Confirmed case	Clinically compatible case that is laboratory confirmed by positive IgM, PCR, or virus isolation

*From (45).