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Annual trends update: HIV, Hepatitis and STIs among MSM in Ireland (to the end of 2017) December 2018
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Acknowledgements We would like to sincerely thank all who provided data for this update; The National MSM Outbreak Response group and Epidemiology subgroup The National Virus Reference Laboratory (NVRL) Microbiology Laboratories Departments of Public Health Consultants in Infectious Disease/Genitourinary Medicine STI clinics GPs and all other clinicians involved More detailed reports on HIV and STIs in Ireland can be found at
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Overall trends in HIV Notifications stable between 2015 and 2017
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HIV trends by risk group MSM account for approximately half of new notifications
MSM: men who have sex with men; PWID: People who inject drugs
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HIV in MSM: Previously diagnosed abroad Proportion diagnosed abroad among MSM stable between 2016 and 2017
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HIV trends by region of birth in MSM Number of notifications stable in Irish born MSM
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Summary of HIV Overall HIV notification rate stable since 2015
MSM the group most affected by HIV in Ireland Slight decrease in notifications among MSM in 2017 Large proportion of MSM diagnosed with HIV in Ireland were previously diagnosed abroad (42% in 2017) Majority are transferring their care and are virally suppressed at time of diagnosis in Ireland Majority of MSM diagnosed with HIV are born abroad
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Hepatitis A among MSM Reports of increased numbers of hepatitis A cases in MSM in a number of European countries since mid-2016 No cases of hepatitis A in MSM in Ireland in 2016 20 cases (30% of all hepatitis A cases) identified in 2017
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Hepatitis A cases identified as MSM
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Hepatitis C among MSM Reports of increased numbers of MSM being diagnosed with hepatitis C since late 2015 65% HIV positive at time of HCV diagnosis Number of cases of hepatitis C identified as MSM decreased in 2017
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Hepatitis C cases identified as MSM by year
*Gonorrhoea, syphilis, chlamydia, lymphogranuloma venereum or genital herpes simplex in the same year as hepatitis C notification or in the year prior to hepatitis C notification 2016 provisional data
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Early infectious syphilis (EIS): Summary 2017
2017 provisional data Early infectious syphilis (EIS): Summary 2017 Increase in EIS notifications during 2017 (n=398) versus 2016 (n=305), however data are not comparable as the sensitivity of reporting increased in July 2016 MSM continue to be the group most affected, accounting for 87% of EIS notifications in 2017 (similar to 2016) 2017 provisional data
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Recent trends in EIS among males
2017 provisional data Recent trends in EIS among males *Laboratory criteria for notifying EIS were updated, increasing the sensitivity of reporting, from 01st July 2016 onwards 2017 provisional data
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2017 provisional data EIS: Summary 2017 Large proportion (37%) of MSM diagnosed with EIS are HIV positive Majority (49%) of MSM diagnosed with EIS were born in Ireland (23% originate from Latin America; 12% from Western Europe, 7% from Central or Eastern Europe and 9% from all other regions) 2017 provisional data
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Gonorrhoea trends to the end of 2017
The rate of gonorrhoea notifications have been increasing since 2015
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Trends in gonorrhoea by risk group
Following a large increase in the notification rate among MSM in 2016, compared to 2015, the rate increased slightly in 2017 but the proportion of cases among MSM decreased to 60% of cases in 2017, compared to 67% in 2016* *of cases where mode of transmission was known
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Gonorrhoea summary, 2017 Overall number of gonorrhoea notifications increased in 2017 compared to 2016 The rate of gonorrhoea notifications remained high and increased slightly among MSM in 2017; but the proportion of cases among MSM decreased in 2017, compared to 2016 Antibiotic resistant gonorrhoea is an international concern - Establishment of Irish multi-disciplinary committee to monitor situation
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LGV trends to the end of 2017 There were 20 cases of Lymphogranuloma Venereum (LGV) reported in 2017, a decrease compared to 2016 All cases in 2017 were reported among MSM
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Trends in HIV status among LGV cases
HIV status was known for 90% of LGV cases in 2017 and of cases where HIV status was known, 50% of cases were HIV positive and 50% of cases were HIV negative This represents an increase in the proportion of cases among HIV negative MSM
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Trends in LGV by region of birth
Over 50% of LGV cases were born in Ireland 14% were born in Latin America, 11% were born in Central or Eastern Europe, 7% were born in another Western European country (other than Ireland)
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LGV summary, 2017 The number of LGV cases decreased in 2017, compared to 2016 due to an outbreak of LGV among MSM in the greater Dublin area ending in 20161 All cases in 2017 were among MSM The proportion of cases among HIV negative MSM increased in 2017, compared to previous years Over half of cases reported in 2017 were born in Ireland 1Cooney F., Ó’hAiseadha C., Downes P. LGV Outbreak in Ireland. Epi Insight 2015; 16(2).
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STEI among MSM Sexually transmitted enteric infections (STEI) are an emerging issue among MSM Shigellosis was historically travel- associated and food/water-borne Sexually-transmitted Shigellosis has been reported among MSM in recent years Outbreaks/clusters associated with MSM in Ireland
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Trends in STEI among MSM to the end of 2017
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Information and guidance for the prevention of Shigellosis among MSM is available at:
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Summary: HIV and STIs among MSM
Overall HIV notifications remaining stable High proportion previously diagnosed abroad and majority of previously positive group are virally suppressed Hepatitis A among MSM decreased at end of 2017 Hepatitis C among MSM decreased in 2017 Syphilis proportion of MSM unchanged in 2017 compared to 2016 Gonorrhoea numbers among MSM remain high but the proportion of cases among MSM decreased in 2017 LGV decreased in 2017 STEIs like Shigellosis are an emerging issue among MSM
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