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Measles
| Generalities | |
|---|---|
| Agent | Measles virus, genus morbillivirus, family paramyxoviridae |
| Incubation period | 10 days (7-18 days, may be to 21 days) |
| Period of transmissibility | 4 days before rash and 4 days after rash onset |
| Reservoir | Humans |
| Modes of transmission | - Person-to-person: direct contact with droplets, rarely indirect contact - Airborne (if confined place) |
| Clinical presentation | - Febrile maculo-papular rash - Complications: otitis media (7-9%), pneumonia (1-6%), gastro-enteritis (8%) and dehydration, blindness, convulsions (1/200), encephalitis (1/1000) - Encephalitis: post-infectious encephalitis 1 week from onset; or acute encephalitis of delayed type weeks and months after onset) - Long term complication: sub-acute sclerosing pan-encephalitis SSPE, 7 years or more after onset (1/25000 case, and 1/8000 if onset under 2 years old) - Case fatality: 3-6% in developing countries, 1-3/1000 in developed countries |
| Resources | |
| Case definition | MOPH circular no 11 (2013) |
| Forms | - Rash reporting form - Rash investigation form |
| Guideline | Measles surveillance guideline: Ar, En, Fr |
| Data | - Weekly report |
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