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| Disease | Incubation Period | Communicability | Exclusion Laws |
|---|---|---|---|
| Chickenpox (Varicella) | From 10-21 days; usually 14-16 days | As long as 5 days, but usually 48 hours before onset of rash, or until all vesicles have scabbed. | Yes |
| Conjunctivitis (Pink Eye) |
Bacterial: 24-72 hours; Viral: usually 12 hours-3 days | Dependent upon cause of the infection. | Yes |
| Fifth Disease | From 4-14 days; up to 6 days | During acute stage of illness. | No (may exclude if fever present) |
| Measles | From 7-18 days; average 10 days | 1-2 days before beginning of prodromal period to 4 days after rash appears. | Yes |
| Mononucleosis | 4-7 weeks after exposure | Indeterminate. | No |
| Pediculosis (Lice) |
Eggs hatch in 1 week; lice can multiply in 8-10 days; lives 20-30 days. | As long as live lice remain on an infested person, or until eggs are ¼" away from scalp. | No |
| Ringworm | From 4-10 days | As long as infection is present. | No (exclude from some activities) |
| Scabies | From 2-6 weeks | During duration of illness. | Yes |
| Strep Throat | Usually 1-3 days | Usually 24-48 hours if under treatment. | No |
Communicable Disease Reference Guide: Table of Contents
Indiana State Department of Health, 2 N Meridian St, Indianapolis, IN 46204, 317.233.1325