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1.
Public Health ; 186: 63-70, 2020 Sep.
Article in English | MEDLINE | ID: mdl-32784097

ABSTRACT

OBJECTIVES: In England, notifications of invasive group A streptococcal (iGAS) infections have increased since 2015. We describe time trends, risk factors, as well as clinical and infection characteristics amongst iGAS cases in North West England, focussing on people who inject drugs (PWIDs), prisoners and homeless populations (referred to as risk groups), and analyse factors for fatal infection. STUDY DESIGN: The study design used was a cross-sectional study. METHODS: Data for all iGAS cases notified to Public Health England North West between January 2016 and May 2019 were used. Analysis consisted of time trend analysis, descriptive statistics, hypothesis testing to investigate differences in clinical and infection characteristics between risk and non-risk groups and binary logistic regression to identify factors associated with fatal infection. RESULTS: There were 1353 cases. Two hundred and two were amongst risk groups, who were predominantly PWIDs in Greater Manchester. Soft tissue risk factors were widespread. There were differences in strain-type between risk and non-risk groups. Female gender, cancer, emm1.0 and emm5.23 were associated with increased odds of death, whilst cellulitis was associated with reduced odds. The relationship between age and death was U-shaped. CONCLUSIONS: iGAS has increased in North West England since 2016, including amongst PWIDs. This may be due to emm-type replacement, barriers to good hygiene and increasing colonisation.


Subject(s)
Streptococcal Infections/epidemiology , Streptococcus pyogenes/isolation & purification , Adult , Aged , Cross-Sectional Studies , England/epidemiology , Female , Ill-Housed Persons/statistics & numerical data , Humans , Incidence , Injections/statistics & numerical data , Logistic Models , Male , Middle Aged , Prisoners/statistics & numerical data , Risk Factors , Streptococcal Infections/mortality
2.
Euro Surveill ; 19(49)2014 Dec 11.
Article in English | MEDLINE | ID: mdl-25523970

ABSTRACT

This paper describes the epidemiology and management of a prolonged outbreak of measles across the 2.7 million conurbation of Greater Manchester in the United Kingdom. Over a period of one year (from October 2012 to September 2013), over a thousand suspected measles cases (n = 1,073) were notified across Greater Manchester; of these, 395 (37%) were laboratory-confirmed, 91 (8%) were classed as probable, 312 (29%) were classed as possible and 275 (26%) excluded. Most confirmed and probable cases occurred in children within two age groups­infants (too young to be eligible for measles-mumps-rubella (MMR) vaccination according to the national immunisation programme) and children aged 10-19 years (low vaccine uptake in this cohort because of unfounded alleged links between the MMR vaccine and autism). During this one year period, there were a series of local outbreaks and many of these occurred within the secondary school setting. A series of public health measures were taken to control this prolonged outbreak: setting up incident management teams to control local outbreaks, a concerted immunisation catch-up campaign (initially local then national) to reduce the pool of children partially or totally unprotected against measles, and the exclusion of close contacts from nurseries and school settings for a period of 10 days following the last exposure to a case of measles.


Subject(s)
Disease Outbreaks , Measles-Mumps-Rubella Vaccine/administration & dosage , Measles/epidemiology , Measles/prevention & control , Adolescent , Child , Child, Preschool , Disease Notification , England/epidemiology , Female , Humans , Immunization , Immunization Programs , Incidence , Infant , Male , Measles-Mumps-Rubella Vaccine/immunology , Population Surveillance , Public Health
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