Maryn McKenna

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Five-fold increase in flu+MRSA deaths in kids

October 7, 2008 By Maryn Leave a Comment

I have a story up this evening at CIDRAP News about a new paper in the journal Pediatrics that analyzes the incidence of child deaths from pneumonia caused by the combination of MRSA and flu, a sad and scary development that we’ve talked about here, here and here.

(NB: CIDRAP News is the original-reporting and news-aggregation arm of the Center for Infectious Disease Research and Policy at the University of Minnesota, an infectious disease research center headed by noted epidemiologist Michael Osterholm, PhD. I have a part-time appointment there. CIDRAP News is the best-read infectious-disease website you have never heard of, with about 10 million visitors a year, and is a notable resource for news on seasonal and pandemic flu, select agents and bioterrorism, and foodborne disease.)

It is bad netiquette and not fair use to reproduce another publication’s entire story here, even if I wrote it. Here though are the highlights:

  • 166 children died of influenza in the past three seasons (2004-05, 2005-06, 2006-07) according to 39 states and 2 local health departments (86 this year in preliminary reporting)
  • The proportion of deaths from bacterial co-infection rose each year, from 6% to 15% to 34%, a five-fold increase
  • Almost all of the bacterial co-infections were staph; 64% of them MRSA
  • The rapid rise in MRSA colonization (from 0.8% of the population in 2001 to 1.5% in 2004 — that’s more than 4 million people) may be playing a role
  • And, some of these deaths could have been avoided if children had had flu shots — but overall, only 21% of under-2s and 16% of 2- to 5-year-olds get the two shots they need to be fully protected against flu.

Please click through to CIDRAP for more.

The cite is: Finelli L, Fiore A, Dhara R, et al. Influenza-associated pediatric mortality in the United States: increase of Staphylococcus aureus coinfection. Pediatrics 2008;122:805-11.

Filed Under: CDC, colonization, influenza, MRSA, pandemic flu, pneumonia, surveillance

Not-reimbursing hospitals for MRSA: The reaction

August 22, 2008 By Maryn Leave a Comment

You’ll remember that early in the summer we talked about the proposal by the Center for Medicare and Medicaid Services to cease reimbursing hospitals for the additional care of a patient that is required when a hospital gives a patient a nosocomial infection. CMS has been debating whether to include several types of hospital-acquired infection in the 2009 iteration of its “never event” no-reimbursement list. (CMS has not announced its final choices.)

Healthcare’s reaction has been, hmmm, not positive. At The New Health Dialogue, Joanne Kenen captures the reactions, many of which run along the lines of “infections are inevitable because patients are so sick.” But she’s also found a marvelous (and appalling?) argument that goes, more or less, “Preventing infections will be more costly, not less, because hospitals will introduce additional procedures to protect themselves.”

This recalls the intriguing and dismaying suggestion in JAMA a few weeks ago that “search and destroy” active surveillance is driven less by wanting to halt in-hospital transmission and more by hospitals wanting to build a case that patients brought the infection with them.

Filed Under: CMS, hospitals, infection control, medical errors, nosocomial, reimbursement, surveillance

Antibiotic resistance in food animals all across Europe

July 7, 2008 By Maryn Leave a Comment

Via a journal that’s new to me — the Acta Veterinaria Scandinavica, the open-access journal of the Veterinary Associations of the Nordic Countries — comes an amazing review of the prevalence of antibiotic resistance in cattle in 13 European countries. Based on 25,241 isolates collected over three years, Denmark, Britain, the Netherlands, Norway, Sweden and Switzerland do well, but “many isolates from Belgium, France, Italy, Latvia and Spain were resistant to most antimicrobials tested.“

Most resistant pathogen: E. coli. MRSA is present as well:

Of major concern is the level of resistance to oxacillin and 3rd generation cephalosporins (i.e. ceftiofur) in S. aureus. The prevalence of oxacillin resistance in Spain (3.7%) and France (8.3%) and the resistance towards cephalosporins in Spain (0.9% in 2004) and France (4.2% in 2002; 1% in 2003) indicate the presence of methicillin resistant S. aureus (MRSA) in these two countries.

The authors ascribe the differences among countries to different patterns of antimicrobial use by veterinarians and stress that it is time for veterinarians to begin using measurements of local resistance patterns (in human medicine, an “antibiogram”) before prescribing. Cite coming when the Acta site is updated. UPDATE: The paper is here; cite is: Hendriksen, RS et al. Prevalence of antimicrobial resistance among bacterial pathogens isolated from cattle in different European countries: 2002-2004. Acta Veterinaria Scandinavica 2008, 50:28doi:10.1186/1751-0147-50-28.

I wasn’t aware that this same set of authors (Hendriksen, RS et al.) just a few weeks ago published a similar review of antimicrobial resistance in pigs in Europe. It looks at several bacterial species in pigs, but unfortunately for our purposes, no S. aureus.

Filed Under: animals, Europe, food, MRSA, pigs, surveillance, veterinary

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