【medical-news】感冒病毒在体外24小时内保持活性
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Cold virus lingers on common surfaces for a day
Reuters Health
Monday, October 2, 2006
SAN FRANCISCO (Reuters Health) - In a study that tested the surfaces in hotel rooms, researchers found that rhinovirus, the virus that caused most colds in humans, remains active on numerous objects and can be transmitted for at least 24 hours.
"To my surprise, in a hotel room occupied over night by an adult with a cold, everything from television remote controls, telephones, light switches and faucets were contaminated with rhinovirus," principal investigator Dr. Owen Hendley reported at the 46th Interscience Conference on Antimicrobial Agents and Chemotherapy.
To investigate how often and how easily common surfaces are contaminated by people with colds in the course of normal activities, and how often the virus might be transmitted in this way to others, Hendley and colleagues from the University of Virginia Health System in Charlottesville conducted a study using hotel rooms as a convenient model.
The investigators asked 15 patients with colds who tested positive for rhinovirus to check into a hotel room, stay awake for 5 hours before going to bed, remain in the room for 2 hours before checking out, and to have no visitors. The subjects then made a list of all of the objects they had touched, and Hendley's group swabbed 10 sites on the list and tested for rhinovirus RNA.
They detected rhinovirus on 35 percent of a total of 150 surfaces tested in the hotel rooms. In the 10 different sites, rhinovirus RNA was found on 0 to 1 in 5 subjects' rooms, on 3 to 5 sites in 7 subjects' rooms, and on 8 sites in 3 subjects' rooms.
The most common sites of contamination were door handles (7 rooms), light switches (6 rooms) faucets (6 rooms), telephones (5 rooms), and TV remote controls (5 rooms).
Although contact with dried mucus is not the most efficient way of transmitting the virus, it can be transmitted in this fashion for 1 day or longer,. Hendley concluded. "The next time you stay in a hotel, knowing that rhinovirus may be left from the last guest, you may wonder how meticulous the clean-up crew was in their work."
Reuters Health
Monday, October 2, 2006
SAN FRANCISCO (Reuters Health) - In a study that tested the surfaces in hotel rooms, researchers found that rhinovirus, the virus that caused most colds in humans, remains active on numerous objects and can be transmitted for at least 24 hours.
"To my surprise, in a hotel room occupied over night by an adult with a cold, everything from television remote controls, telephones, light switches and faucets were contaminated with rhinovirus," principal investigator Dr. Owen Hendley reported at the 46th Interscience Conference on Antimicrobial Agents and Chemotherapy.
To investigate how often and how easily common surfaces are contaminated by people with colds in the course of normal activities, and how often the virus might be transmitted in this way to others, Hendley and colleagues from the University of Virginia Health System in Charlottesville conducted a study using hotel rooms as a convenient model.
The investigators asked 15 patients with colds who tested positive for rhinovirus to check into a hotel room, stay awake for 5 hours before going to bed, remain in the room for 2 hours before checking out, and to have no visitors. The subjects then made a list of all of the objects they had touched, and Hendley's group swabbed 10 sites on the list and tested for rhinovirus RNA.
They detected rhinovirus on 35 percent of a total of 150 surfaces tested in the hotel rooms. In the 10 different sites, rhinovirus RNA was found on 0 to 1 in 5 subjects' rooms, on 3 to 5 sites in 7 subjects' rooms, and on 8 sites in 3 subjects' rooms.
The most common sites of contamination were door handles (7 rooms), light switches (6 rooms) faucets (6 rooms), telephones (5 rooms), and TV remote controls (5 rooms).
Although contact with dried mucus is not the most efficient way of transmitting the virus, it can be transmitted in this fashion for 1 day or longer,. Hendley concluded. "The next time you stay in a hotel, knowing that rhinovirus may be left from the last guest, you may wonder how meticulous the clean-up crew was in their work."
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