Hohenstein investigates link between textiles and herpes simplex

23/03/2009

According to the latest research at Hohenstein's Institute for Hygiene and Biotechnology (IHB), it seems likely that contaminated textiles may be another pathway for the spread of herpes pathogens.

With the help of molecular biological analysis, scientists at the Hohenstein Institute have successfully demonstrated that the herpes-simplex virus (HSV-1) adheres strongly to textile fibres. The results clearly indicate that spread of infection may also be possible via textile items that a herpes sufferer has used.

During the adhesion experiment at the IHB, a suspension of HSV-1 particles was used to contaminate small swatches of textiles directly. The results indicated that the herpes virus was still present on the textile after 48 hours at room temperature. Based on studies showing that the herpes simplex virus remains persistent on hard surfaces for eight weeks (Mahl and Sadler, 1975), it seems infectious particles are also likely to be present on the textile.

The virus's DNA could still be found on the swatches even after laundering at 40°C in a conventional household washing machine using household detergents. This underscores the high level of adhesion of the herpes virus to textile fibres, regardless of whether these are infectious particles or not. But after laundering herpes infection via textiles remains improbable because the envelope of the virus, which plays a significant role in transmission, is very delicate. Nevertheless, based on these initial results, the danger of infection cannot conclusively be ruled out.