| DISEASE |
INCUBATION PERIOD (DAYS) |
TIME WHEN PATIENT IS INFECTIOUS |
EXCLUSION FROM SCHOOL |
COMMENTS |
| Chickenpox |
14 - 21 |
From about one to two
days before, to not more than six days after last crop of spots |
While child is unwell |
|
| Cold Sores (Herpes Simplex) |
|
On direct contact, whilst
lesions are still moist |
None |
They tend to heal and
recur, personal hygiene is important |
German Measles
(Rubella) |
14 - 21 but usually 16
- 18 |
One week before to four
days after onset of rash |
Seven days after onset
of rash |
All young women with children
should be checked to ensure they are immune |
| Infective Diarrhoea |
Variable |
During acute stage and
for a variable time afterwards |
Usually until symptom
free |
Good personal hygiene
is essential |
Lice
(Head or Body)
|
|
Whilst harbouring lice
- until treated |
None |
Check children's hair
but adults may be the source |
| Measles |
10 - 15 |
Few days before to four
days after onset of rash |
About seven days from
onset of rash |
All children should be
immunised |
| Mumps |
14 - 21 but usually 18 |
Mainly about two days
before onset of illness, but until four days after swelling subsides |
Until swelling has subsided |
|
| Scabies |
Variable - may be several
weeks |
Until mites and eggs are
destroyed |
24 hours after treatment |
Skin itch may persist
for some time |
| Verrucae |
|
|
None |
Normal activities should
continue. It is advisable to cover verrucae with an appropriate dressing or footwear. |
| Whooping Cough |
7 - 10 |
Mainly in early catarrhal
stage but until 3 - 4 weeks after onset of paroxysmal cough. This may be shortened
to seven days if treated with antibiotics |
If treated with antibiotics,
may return after seven days if well enough |
New children should not
be admitted to school during epidemic unless immunised |