Giuseppe
Emeritus
Source: European Centre for Disease Prevention and Control (ECDC), full page: (LINK). Extracts.]
COMMUNICABLE DISEASE THREATS REPORT, Week 46, 10-16 November 2013
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Increase in cases of Salmonella Mikawasima - Multistate (EU)
Opening date: 13 November 2013 Latest update: 13 November 2013
Epidemiological summary
Since October 2013, the UK has recorded 46 cases of Salmonella Mikawasima (Health Protection Scotland 20, Public Health England 27 and Public Health Wales one).
France has reported 15 cases compared to 4 to 12 cases annually, seven of which since mid-September.
Denmark has started an investigation after identifying five isolates with this rare serotype in the last two weeks. PFGE and whole genome sequencing is currently being performed on these isolates.
Germany and Sweden have also reported higher case numbers than expected during this period.
To date, no increase in cases with this serotype has been observed in Austria, Finland, Greece, Ireland, Italy or the USA.
According to data from The European Surveillance System (TESSy), the annual number of confirmed cases reported with this serotype has ranged from 51 to 135 in the last five years. A higher frequency of cases was reported among young and middleaged adults (60% of cases were 25-65 years old). Twenty percent of the 305 cases with known importation status were imported.
The probable country of infection reported most frequently was Spain (18 cases).
The comparison in the molecular surveillance database revealed indistinguishable PFGE profiles in 23 cases from four countries, of which 18 are reported from two countries in October-November 2013.
ECDC assessment
This is a rare serotype in Europe. The recent increase in several Member States suggests a common source.
Actions
ECDC has been liaising with EFSA and Member States regarding this event. ECDC's FWD team will monitor the development and continue to summarize the existing evidence to support the Member States currently investigating the outbreak.
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COMMUNICABLE DISEASE THREATS REPORT, Week 46, 10-16 November 2013
(...)
Increase in cases of Salmonella Mikawasima - Multistate (EU)
Opening date: 13 November 2013 Latest update: 13 November 2013
Epidemiological summary
Since October 2013, the UK has recorded 46 cases of Salmonella Mikawasima (Health Protection Scotland 20, Public Health England 27 and Public Health Wales one).
France has reported 15 cases compared to 4 to 12 cases annually, seven of which since mid-September.
Denmark has started an investigation after identifying five isolates with this rare serotype in the last two weeks. PFGE and whole genome sequencing is currently being performed on these isolates.
Germany and Sweden have also reported higher case numbers than expected during this period.
To date, no increase in cases with this serotype has been observed in Austria, Finland, Greece, Ireland, Italy or the USA.
According to data from The European Surveillance System (TESSy), the annual number of confirmed cases reported with this serotype has ranged from 51 to 135 in the last five years. A higher frequency of cases was reported among young and middleaged adults (60% of cases were 25-65 years old). Twenty percent of the 305 cases with known importation status were imported.
The probable country of infection reported most frequently was Spain (18 cases).
The comparison in the molecular surveillance database revealed indistinguishable PFGE profiles in 23 cases from four countries, of which 18 are reported from two countries in October-November 2013.
ECDC assessment
This is a rare serotype in Europe. The recent increase in several Member States suggests a common source.
Actions
ECDC has been liaising with EFSA and Member States regarding this event. ECDC's FWD team will monitor the development and continue to summarize the existing evidence to support the Member States currently investigating the outbreak.
(?)
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