The Common House Spider Tegenaria saeva is an unlikely vector or reservoir of Community-Associated Methicillin-resistant Staphylococcus aureus (CA-MRSA)

Jack Lee

Abstract


Aim: To identify whether the common house spider Tegenaria saeva can act as a potential vector and reservoir of Community-Associated Methicillin-Resistant Staphylococcus aureus (CA-MRSA).
Methods and Results: Tegenaria saeva were screened for the presence of S. aureus and CA-MRSA on the fangs, legs, outer body and internal microflora. None of the spiders processed in this investigation carried MRSA. However, 37.5% did carry S. aureus. Overall, low levels of microbes were isolated from the spiders processed.
Conclusion: T. saeva is an unlikely vector of CA-MRSA. A large percentage of "spider bite‟ lesions are normally misdiagnosed bacterial infections, with limited evidence linking them to spider bites.
Significance and Impact of Study: The consequence of misdiagnosed "spider bite‟ lesions could lead to untreated bacterial infections. If this was to occur with a community-associated Methicillin-resistant Staphylococcus aureus (CA-MRSA) infection, the outcome could be life threatening.

Keywords: Methicillin Resistant Staphylococcus aureus• MRSA • community-associated MRSA•CA-MRSA• Tegenaria saeva• vector• spider bite• spider bite lesions

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ISSN 1754-2383 [Online] ©University of Plymouth