Causes of morbilliform rash in a highly immunised English population
M Ramsay1, M Reacher1,
C OFlynn1, R Buttery2, F
Hadden3, B Cohen4, W Knowles4,
T Wreghitt5 and D Brown4
1 Public Health Laboratory Service, Communicable
Disease Surveillance Centre, 61 Colindale Avenue, London NW9 5EQ, UK 2 Cambridgeshire and Peterborough Public Health Network,
Hinchingbrooke Business Park, Huntingdon, Cambridgeshire PE29 6FH, UK 3 Suffolk Public Health Network, Communicable Disease Control Team,
PO Box 170, St Clements, Foxhall Road, Ipswich IP3 8LS, UK 4 Public Health Laboratory Service, Enteric, Respiratory, and
Neurological Virus Laboratory, Central Public Health Laboratory, 61 Colindale
Avenue, London NW9 5HT, UK 5 Public Health & Clinical Microbiology Laboratory, Box 236,
Addenbrookes Hospital, Hills Road, Cambridge CB2 2QW, UK
Correspondence to:
Dr M Ramsay, Public Health Laboratory Service, Communicable Disease Surveillance
Centre, 61 Colindale Avenue, London NW9 5EQ, UK; mramsay@phls.org.uk
Aims: To determine the causes of morbilliform rash and feverin a population with high vaccination coverage for measles and
rubella.
Methods: Comprehensive laboratory investigation additional toroutine oral fluid testing of children presenting to primary
care physicians in East Anglia, England.
Results: Laboratory confirmation of infection was obtained in93 (48%) of 195 children: parvovirus B19 in 34 (17%); groupA
streptococcus in 30 (15%); human herpesvirus type 6 in 11(6%);
enterovirus in nine (5%); adenovirus in seven (4%); andgroup C
streptococcus in six (3%) (four individuals tested positivefor two
agents). None had measles or rubella.
Conclusions: Oral fluid testing to cover infections additionalto measles and rubella aids clinical management and is likely
to maintain uptake of testing, which is essential for measlesand
rubella surveillance in highly immunised low incidence populations.
Keywords: rash; immunisation; surveillance; parvovirus B19; group A
streptococcus; human herpesvirus type 6
Abbreviations: GAS, group A streptococci; GCS, group C
streptococci; HHV, human herpesvirus; PCR, polymerase chain reaction
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