Popular disinfectants do not kill HPV

Commonly used disinfectants do not kill human papillomavirus (HPV) that makes possible non-sexual transmission of the virus, thus creating a need for hospital policy changes, according to researchers from Penn State College of Medicine and Brigham Young University.

"Because it is difficult to produce infectious HPV particles for research, little has been known about HPV susceptibility to disinfection," said Craig Meyers, Distinguished Professor of Microbiology and Immunology, Penn State College of Medicine.

Use of on HPV in health care settings has been based on what works on other viruses or what is thought should be effective.

Meyers collaborated with Richard Robison, an expert in microbial disinfectants at Brigham Young University.

HPV is estimated to be among the most common sexually transmitted diseases and is linked to cervical cancers. For this study, researchers grew HPV16, a specific strain that is responsible for up to 60 percent of all HPV-associated cancers. They then used 11 common disinfectants on the virus.

These disinfectants included ones made of ethanol and isopropanol because these are common ingredients in surface disinfectants and hand sanitizers used in both public and health care settings. Study of these hand sanitizers is important because other research has shown high levels of HPV DNA on fingers of patients with current genital infections. While HPV is susceptible to certain disinfectants, including hypochlorite and peracetic acid, it is resistant to alcohol-based disinfectants.

"Chemical disinfectants in hand sanitizer are commonly used in the general population to prevent the spread of infectious diseases," Meyers said. "For flu or cold viruses they are very effective. But the data shows that they do nothing for preventing the spread of ."

They also tested other common disinfectants, including glutaraldehyde, which is used for sterilization in medical and dental facilities. Results show that glutaraldehyde is not effective at inactivating the HPV virus.

Results were published in the Journal of Antimicrobial Chemotherapy.

Other research has suggested that HPV could be transmitted non-sexually. The current study shows that medical instruments considered sterile could pose a risk for transmission.

"Chemical disinfectants used in the hospitals and other healthcare settings have absolutely no effect on killing human papillomavirus," Meyers said. "So unless bleach or autoclaving is used in the hospital setting, human papillomavirus is not being killed and there is a potential spread of HPV through hospital acquired or instrument or tool infection."

Meyers said the results suggest a need for a change in disinfectant use policies.

Related Stories

HPV 6, 11, 42/Combo detection doesn't ID CIN 2+, 3+ risk

date Dec 26, 2013

(HealthDay)—Detection of human papillomavirus (HPV) 6, 11, 42 or combination infections does not identify increased three-year risk of cervical precancer, according to a study published in the January issue ...

Recommended for you

Aspirin to improve leg ulcers

date 5 hours ago

Researchers are looking at whether aspirin can improve the healing rates of leg ulcers in older adults.

Sierra Leone marks grim Ebola anniversary

date 9 hours ago

On May 24 last year a pregnant woman and an older housewife staggered into Kenema hospital in eastern Sierra Leone and were diagnosed within a day as the country's first Ebola cases.

MSF fighting cholera outbreak in Tanzania refugee camps

date May 24, 2015

Medical charity Medecins sans Frontieres (MSF, Doctors Without Borders) said Sunday it had launched emergency treatment centres in Tanzania, where thousands of Burundians fleeing unrest have been hit by cholera.

Bacteria blamed in indigenous Mexican baby deaths

date May 23, 2015

Bacteria—and not a contaminated vaccine as initially suspected—were to blame for the recent deaths of two Mexican babies and for sickening 29 others, according to an official investigation.

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.