Table 8.3.

Incubation periods of imported infections

Less than 10 days	Intermediate (up to 21 days)	Greater than 21 days
Dengue Influenza Yellow fever Chikungunya Plague Paratyphoid fevers Legionella	Malaria Viral haemorrhagic fever Rickettsial disease/Q fever African trypanosomiasis Typhoid fever Brucellosis Leptospirosis Relapsing fever	Malaria Viral hepatitis HIV Rabies Visceral leishmaniasis Amoebic liver abscess Filariasis Tuberculosis Q fever Acute schistosomiasis

Some important diagnoses in febrile returned travellers