Paediatric Infections – School Exclusion/Isolation

Prevent the spread of infections by ensuring: routine immunisation, high standards of personal hygiene and practice, particularly hand-washing, and maintaining a clean environment. However, the Health Protection Agency recommend exclusion in some conditions. The table below is up to date as of December 2025 but ideally check the HPA website directly.

InfectionExclusion/Isolation GuidanceNotifiable*Additional advice
Athlete’s footNone neededTreatment recommended. Avoid being barefoot.
ChickenpoxAt least 5 days from onset of rash and until all blisters have crusted over.Pregnant contacts should consult GP/midwife
Cold soresNone neededAvoid direct contact
ConjunctivitisNone neededOutbreak=Consult local Health Protection Team (HPT)
Diarrhoea and vomitingUntil symptoms have settled for 48 hoursIf Ecoli 157 STEC/Typhoid/Shigella/ CryptosporidiosisIf notifiable cause consult HPT for further advice
DiptheriaMust be excludedYesAlways consult HPT for advice. Exclusion extends to family members
EBVNone needed
Fifth disease (Slapped cheek)None neededPregnant contacts should consult GP/midwife
Flu (influenza) or influenza like illnessUntil recoveredOutbreaks should be reported by senior IPC teams
Hand foot and mouthNone needed usuallyContact HPT if a large number of children affected
Head liceNone neededTreatment indicated only when live lice are seen
Hep AExclude until 7 days after onset of symptoms/jaundiceHPT will advise protection measures in outbreaks
Hep B/C/HIVNone neededNot infectious through casual contact
ImpetigoUntil lesions are crusted and healed/48 hours after starting antibioticsAntibiotic treatment speeds healing and reduces the infectious period.
Infectious MononucleosisNone needed
InfluenzaUntil recoveredReport outbreaks to HPT
Measles4 days from onset of rashYesPregnant contacts must consult GP/midwife immediately
MeningitisUntil recovered/ Viral=noneViral=No/Other=YesContact HPT for more advice
Molluscum ContagiosumNone needed
MpoxConsult UTD guidance on UKHSA websiteYesClose contacts also need input from HPT
Mumps5 days from onset of swollen glandsYes
MRSANone neededGood hygiene e,g handwashing, environmental cleaning, help minimise spread
Respiratory infections including COVID-19Individuals should not attend if they have a high temperature and are unwell.

Individuals who have a positive test result for COVID-19 should not attend the setting for 3 days after the day of the test.
Individuals with mild symptoms such as runny nose, and headache who are otherwise well can continue to attend their setting.
RingwormNot usually required but must treat
RoseolaNone needed
Rubella5 days from onset of rashYesPregnant contacts must consult GP/midwife immediately
ScabiesUntil 24 hours after first treatment givenClose contacts should be treated at same time
Scarlet fever24 hours after starting antibioticsYes if two or more suspected cases within 3 daysIf no antibiotics, exclude until symptoms recover
SepticaemiaUntil recoveredYesHPT actions will depend on causative agent
ThreadwormsNone neededTreat child and close contacts
TBUntil 2 weeks after starting treatment if pulmonary TBYesOnly pulmonary TB is infectious and needs prolonged close contact to spread.
HPT will contact trace
Warts/verrucaeNone neededCover in swimming pools and gymnasium
Whooping cough2 days after starting antibiotics/14 days after symptom onset if no antibioticsYesNon-infectious coughing may continue for weeks

*Registered medical practitioners in England and Wales have a statutory duty to notify their local authority or UK Health Security Agency (UKHSA) HPT of suspected cases of certain infectious diseases.

 

Yorkshire and the Humber HPT – Find your HPT

Quarry House, 8th Floor
Leeds
LS2 7UE

Telephone: 0300 303 0234

Out of hours for health professionals requesting urgent advice: 0300 303 0234

Email: yorkshirehumberhpt@ukhsa.gov.uk
Email for personal identifiable information (PII): phe.yorkshirehumber@nhs.net

Reference

 

Created by Dr Euan Ballantyne

 

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