The following diseases are presently deemed to be infectious, contagious or potentially harmful to the health of other people in a school. The minimum periods that a sufferer should not attend school are indicated. These recommended periods are a guide which may be modified in individual cases. Further advice can be obtained from the Director of Public Health
| Chicken Pox | Should not attend for 5 days after the first eruption appears (scabs remaining after this time are not an indication of a need for continued exclusion) |
| Conjunctivitis | Should not attend until eye discharge stops |
| Diarrhoea | Should not attend until condition stops |
| Diphtheria | Should not attend until medical certificate of recovery issued after at least 2 negative throat swabs |
| Glandular Fever | May attend school |
| Hepatitis A | Should not attend until medical certificate of recovery |
| Hepatitis B | May attend school |
| Hepatitis C | May attend school |
| HIV | May attend school |
| Leprosy | Should not attend until health authority authorises return |
| Measles | Should not attend for at least 5 days from appearance of rash |
| Meningitis (Bacterial) | Should not attend until well |
| Meningococcal Infection | Should not attend until well |
| Mumps | Should not attend for at least 9 days after onset of symptoms |
| Pediculosis (Lice) | Should not attend until day after treatment has started |
| Poliomyelitis | Should not attend for at least 14 days from onset and readmit on medical certificate of recovery |
| Ringworm | Should not attend until day after treatment has started |
| Rubella (German Measles) | Should not attend until fully recovered or for at least 4 days after the onset of rash |
| Scabies | Should not attend until day after treatment has started |
|
School Sores |
Should not attend until sores on exposed surfaces have been treated and are covered with a dressing |
| Streptococcal Infection (including Scarlet Fever) |
Should not attend for 24 hours after antibiotic treatment and the student feels well |
| Trachoma | Should not attend until day after treatment has started |
| Tuberculosis | Should not attend until production of medical certificate |
| Typhoid and Paratyphoid Fever | Should not attend until production of medical certificate |
| Whooping Cough | Should not attend for 5 days after starting antibiotic treatment |