Do you also often see that in restaurants or cafes/high-speed rails, many people directly use "alcohol sprays the tabletop" or even chairs. Spray a bunch of alcohol, thinking that disinfecting this kind of alcohol is safe?
Your double hands, your flying. The tools that the virus carries on your body. Huang Xiao, a critically ill doctor, pointed out that this is actually a very big trap error, because the virus will infect us because we use our fingers to touch our mouths and noses. These viruses enter our bodies from our nostrils, respiratory tracts, mouths, etc.; while the viruses on the desktop and plastic bags will not fly up and run to your nostrils. When the virus enters your breathing hole, it is your own hands on the table, in the cabinet, in the upper room, in the door, etc. Your hands are finished touching and touching the virus, and you will not knowingly touch and rub your nose. These viruses will definitely enter your body.
Alcohol disinfection desktop is good, but if you don't disinfect your own hands, your fingers touch any virus-contaminated objects, and then borrow your children home, these viruses will infect you, and your family will not escape! Therefore, if you only disinfect the tabletop alcohol and ignore the disinfection of the hand alcohol, the protection effect may be incomplete because the hands are the main way to transmit pathogens.
1. The role and limitations of desktop disinfection
. Function:
Alcohol can effectively kill bacteria and viruses on the desktop and reduce pathogenic burden in the environment. However, it is not effective in preventing inter-connection and contact transmission (such as touching a contaminated desktop with your hands, and then touching your mouth and nose with your mouth and nose)!
. Limitations:
After your desktop is disinfected, it may still be contaminated immediately again. For example: the person at the same desk with you has not disinfected his hands, and immediately touches the clean desktop, and immediately brings the pathogen back; you have a close conversation, flying foam and flying infection. Desktop disinfection can only reduce viruses in the environment and cannot directly protect individuals because the virus may enter the human body through other channels (such as hands and food).
2. The risk of lack of hand disinfection
. The main ways of virus transmission:
hand is the main medium for transmitting pathogens. Even if the desktop is thoroughly disinfected, if the hands are not cleaned, it is still possible to bring the pathogen into the body when touching the eyes, mouth, and nose, or recontaminate when touching the surface of other items.
. Potential consequences:
Even if the desktop is clean, the virus may still be transmitted to yourself or others through unsanitized manuals. Because everyone took precautions and kept moving at close range, the mouth was flying! The direct transmission path of "hand-to-touch — mouth and nose" cannot be cut off.
Wash hands with soap. Key measures to cut off the infection path.
Huang said that in order to effectively predict viruses and other infectious diseases, desktop disinfection and hand disinfection should be combined:
1. Desktop disinfection: reduce the burden on pathogens in the environment, especially in public places or in spaces where virus-infected people are infected.
2. Hand alcohol disinfection: Clean your hands at any time, especially after touching public facilities, such as toilets or before eating.
3. Washing hands with: It’s very important! If there is obvious dirt on your hands, you need to clean it with soap and water, and then disinfect it with alcohol. Only desktop alcohol disinfection and hand disinfection can partially reduce environmental pollution, but it cannot effectively prevent the spread of pathogens.
4. Alcohol disinfection: It only has the effect of killing some viruses. Common adenoviruses, rhinoviruses and other respiratory infections will have no effect!
Yellow is strongly stressed that virulence, norovirus, hepatitis A virus, rhinovirus and other viruses are ineffective against alcohol. You should wash your hands before and after meals with soap, so you spray a lot of alcohol to disinfect on the table!