GuidelinesOther guideline
Infectious Periods
Infectious Periods
| Disease | Incubation | Prodrome | Isolation Period |
| Chickenpox | 14-21 days | 0-2 days | Until lesions crusted. (Usually 5-7days) |
| Diphtheria | 0-7 days | Nil | Until 3 negative throat swabs |
| Hepatitis A | 15-40 days | 2-5 days | 7 days from onset of jaundice |
| Hepatitis B | 60-180 days | 2-5 days | Variable &uncertain |
| Measles | 7-14 days | 3-7 days | 5 days from start of rash |
| Meningococcal | 0-7 days | Nil | 2 days from start of treatment |
| Mumps | 14-21 days | 0-1 day | 14 days from onset |
| Pertussis | 7-14 days | Up to 21 days | 1st 2 days of treatment with erythromycin |
| Poliomyelitis | 7-14 days | 11-14 days | 10 days |
| Rubella | 14-21 days | 0-2 days | Isolate from pregnant women for ±7 days, otherwise none |