Not washing with water alone, not using hand sanitizer or soap,
Ignoring areas like the fingertips, between fingers, and the thumb.
Not washing hands promptly with shared hand towels can lead to secondary contamination after wiping.
Experts warn: rinsing with running water is best. Washing hands with water in a basin is a “bacterial cycle,” meaning the hand is clean and then contaminated.
2. How to Choose a Household Hand Sanitizer Scientifically?
Hand sanitizer with a 99% antibacterial rate? Don’t be misled by marketing claims. The main ingredient in household hand sanitizers is surfactants, and some products contain antibacterial or antibacterial ingredients. The main function of handwashing is cleaning and removing dirt; there’s no need to overly pursue antibacterial or antibacterial properties. When choosing a hand sanitizer, ensure that it complies with national or local standards, is within its expiration date, and is manufactured by a reputable manufacturer.
3. How does hand sanitizer eliminate germs under a microscope?
For example, if hand sanitizer containing parachlorometaxylenol (PCMX), a low-toxic antibacterial agent, is dropped into a sample of E. coli, a 4K microscope will reveal the following: (PCMX can penetrate the lipid bilayer of the bacterial cell membrane, causing the cell membrane to collapse, allowing contents (such as ions, enzymes, and ATP) to leak out. The cell loses osmotic pressure and dies.)
Hand sanitizer containing 75% alcohol is more effective against Gram-positive cocci (Staphylococcus aureus).
4. What happens if you don’t wash your hands regularly?
Studies have shown that if you don’t wash your hands after contact with contaminated surfaces, contaminated hands can harbor a large number of pathogens, including E. coli, Staphylococcus aureus, and various viruses. As the saying goes, “diseases come from the mouth.” Contact between contaminated hands and the nose and mouth increases the risk of respiratory and digestive tract infections and makes children more susceptible to intestinal parasites.
Experts recommend: Before meals, after defecation, before handling food, after returning home from an outing, after handling garbage, and after touching public objects. Proper handwashing with running water and soap/hand sanitizer, such as after touching items (such as elevator buttons or handrails), covering your mouth and nose with your hands after sneezing, coughing, or blowing your nose, and after caring for a patient, can minimize the risk of disease transmission.
