That’s what the WHO stated this week, and it was based on a study, in Lancet Planetary Health. In most news items that I saw animal antibiotic use was directly linked to human infections caused by antibiotic resistant bacteria. A journalist even asked if eating meat was safe. Although most of us (including me) support reduction of unnecessary antibiotic use, it’s worth reading this excellent meta-analysis, initiated by WHO. Did this study answer the burning research question “to what extent does animal antibiotic use influence infections in humans?“ Continue reading
Making MRSA carriage a crime?
A new chapter has been added to our successful MRSA Search and Destroy policy. Yesterday, a healthcare professional, providing homecare to elderly, testified on Dutch television (item starts @ 12.30 minutes) how unnoticed MRSA carriage had influenced her and her family’s life. It is very laudable that she was willing to share her experience, but it was kind of spooky that she felt that she could only do this if unrecognizable, as if the underworld was still after her and her family. Apparently, MRSA carriage has become a criminal or shameful thing. Continue reading
LA-MRSA: On the definition of emergence
Some friends, called patriotic hackers, had secured a very interesting surveillance database and I tried to write a manuscript, when I was scooped (in CID) by friends that apparently had access to the same database. That made my work redundant. So, for your eyes only, my take on that data. Continue reading
Are CA-MRSA more virulent than HA-MRSA?
Community-associated MRSA (CA-MRSA) are characterised by the ability to cause infections – and sometimes serious invasive infections – in previously healthy individuals without healthcare contact. We don’t see this clinical manifestation in healthcare-associated MRSA (HA-MRSA), so it’s is logical to conclude that CA-MRSA are somehow more virulent than HA-MRSA. However, a recent study published in the Journal of Medical Microbiology shows that CA-MRSA strains were no more virulent than HA-MRSA strains in a battery of laboratory tests. This suggests that CA-MRSA’s ability to cause infections in healthy individuals without healthcare contact has more to do with transmissibility than virulence. And this explains the curious phenomenon that CA-MRSA seem to cause the same spectrum of disease as HA-MRSA when they infiltrate a healthcare setting.
MRSA in Denmark
(from Statens Serum Institut, EPI-News, N023-2015)
‘The number of hospital-acquired cases observed in 2014 increased to 95 from 52 cases in 2013, but still comprise only a limited share of the total number of cases (3%). The number of MRSA cases of the CC398 type, which is closely associated with pigs, increased substantially from 643 cases in 2013 to 1,276 cases in 2014 and comprised 43% of the total number of cases. Community-acquired MRSA, i.e. in persons with no known contact to pigs, hospitals or nursing homes, comprised 946 cases in 2014, compared with 821 cases in 2013. In 478 of these cases (51%), there was known exposure to a person with MRSA, most frequently a member of the household (92%). In 56 cases, MRSA was isolated from blood, corresponding to 2.9% of all S. aureus bacteraemia cases, which is a substantial increase with respect to recent years, but the figure remains low compared with other European countries.’
And here I stop citing the report. For those interested in the complete report, please follow the link: MRSA Denmark.