Thursday, 29 November 2012

Pig MRSA in people increasing in Denmark.


Hard information from  the Danish Statens Serum Institute.

Set the gold standard for reporting, don't they?

Not that we have to worry about this in Britain.

Defra, Britain agricultural ministry, almost alone in Western Europe, has told us that MRSA is not present in British pigs and veterinarians confirmed this as recently as last week.

MRSA in Denmark still increasing and exposure to pigs a major factor

Be sure to access the url to see how reporting is done in a country  not being misled by a dodgy veterinary public relations barrage.

Full report with tables here


EPI-NEWS
About diseases and vaccines
No 47 - 2012
MRSA 2011

Once again, the number of new MRSA cases (methicillin-resistant Staphylococcus aureus) increased in 2011. A total of 1,293 cases were recorded versus 1,097 cases in 2010, EPI-NEWS 46/11, corresponding to an 18% increase, Figure 1.

The majority of the MRSA cases were acquired in Denmark; infection acquired abroad was stated in 253 cases (20%). The median age was 52 years (range 0-95) for hospital acquired cases and 32 years (0-97 for community acquired cases.


Epidemiological classification

Epidemiological classification of notified MRSA cases based on presumed mode of acquisition assessed on the basis of epidemiological and microbiological information is presented in Table 1.


A total of 751 cases (58%) had community-acquired MRSA and no known contact to hospitals or nursing homes. Among these, 453 cases (60%) had been exposed to MRSA, primarily from a family member (65%) followed by exposure from pigs directly or indirectly (CC398, 33%, see below), Table 1.

Clinical infection was the cause of sampling in 681 (53%) cases. As presented in Figure 2, the number of hospital acquired infections continued to be very low in line with the previous years (32), whereas the number of community-acquired cases increased. The number of community-acquired cases in which there was known contact to a hospital or nursing home within the previous 12 months was at par with the number recorded in 2010. In 111 cases of community-acquired infection with clinical infection, there was a known exposure to MRSA (primarily a family member followed by contact to pigs). ...


...The 1,293 isolates represented 193 spa types from 17 different clonal complexes (CC groups). The two primary groups, CC8 (n = 270) and CC5 (n = 194) comprised 36% of the isolates and represented 27 and 30 different spa types, respectively. The ten most frequent spa types comprised 57% of the isolates; among these the two most frequently observed types were t034 (n = 130; CC398) and t008 (n = 122; CC5). For further details, please see the 2011 DANMAP report, www.danmap.org.

Resistance to erythromycin and clindamycin decreased with respect to 2010 levels, whereas the remaining resistance pattern mainly remained in line with that observed in 2010.
MRSA CC398

2011 saw a marked increase in the number of persons infected with MRSA CC398, which is closely associated with pigs (164 cases, versus 109 in 2010). In 24 cases, the affected persons had neither had direct contact with pigs, nor had anyone in their household.
mecC-MRSA...


21 November 2012