INFECTIOUS DISEASES.
Disease Incubation
(days)
Quarantine
(days)
Infectivity
(days)
Duration
(days)
Chickenpox 14 to 21 21 -1 to +6 6 to 8
Diptheria 2 to 5 7 14 to 28 (until clear) Until clear
Dysentery
(bacillary)
2 to 7 7 7 to 21 (until clear) 3 to 5
German Measles
(rubella)
14 to 21 21 7 before rash appears until 5 after. 5
Glandular fever 4 to 14 5+ Not known 7 to 21
Influenza 1 - 3 Not necessary When symptoms appear until 7 after. 3 to 5
Measles 8 to 14 14 4 before rash appears until 7 after. 6 to 8
Meningitis 3 to 5 5+ 2 Varies
Mumps 14 to 28 28 7 before symptoms appear until 9 after. 10 to 14
Poliomyelitis 4 to 13 21 Last part of incubation period and first week of acute illness. 10 to 15
Roseola 2 to 5 5 Varies 5 to 7
Scarlet fever 2 to 5 Until clear Beginning of incubation period until 14 to 21 after symptoms appear. 7 to 10
Typhoid fever and Paratyphoid 7 to 21 Until clear Until clear 14 to 21
Whooping cough (pertussis) 7 to 21 21 21 42



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