Bedbugs can carry antibiotic-resistant bacteria
10 June 2011
Bedbugs may be a hidden reservoir for drug-resistant bacteria, Canadian researchers warn in the journal Emerging Infectious Diseases (2011; 17: 1132-4).
Tests on 5 bedbugs (Cimex lectularius) collected from 3 people who lived in an impoverished area in Vancouver showed the insects carried antibiotic-resistant bacteria - the so-called 'superbugs' methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus faecium (VRE). Both these bacteria can cause life-threatening infections which are difficult to treat as they are resistant to almost all antibiotics.
With a rising bedbug population, the risk of disease transmission directly to humans could not be ruled out, the scientists said.
"Because of the insect’s ability to [damage] the skin of its host, and the propensity for S. aureus to invade damaged skin, bedbugs may serve to amplify MRSA infections in impoverished urban communities," they reported.
"Bedbugs may become colonised with community-associated MRSA ... consequently, these insects may act as a hidden environmental reservoir for MRSA."
Bedbug populations have surged in North America and Europe over the past 10 years, they said, driven by increased world travel and insecticide resistance.
Meanwhile, an Australian study released in 2007 found an exponential growth in new bedbug infestations over 6 years, equating to an increase of 4500%.
Last Reviewed: 10 June 2011
- 1. Lowe CF, Romney MG. Bedbugs as vectors for drug-resistant bacteria [letter]. Emerg Infect Dis 2011; 17: 1132-4. doi: 10.3201/eid1706.101978. http://www.cdc.gov/EID/content/17/6/1132.htm (accessed Jun 2011).
2. Doggett SL, Russell RC. Bed bugs – latest trends & developments. Synopsis of Australian Environmental Pest Managers Association National Conference. Coffs Harbour, NSW; 4-6 Jul 2007: 22-37. http://medent.usyd.edu.au/bedbug/papers/bed_bugs_aepma2007_doggett.pdf (accessed Jun 2011).
