What is Hand Sanitizer?
Hand sanitizer is a liquid or gel used to decrease infectious agents on the hands. It typically contains alcohol, such as ethanol or isopropanol, which acts as an
antimicrobial to kill bacteria and viruses. Non-alcohol based versions are available, but they are generally less effective.
Why is Hand Sanitizer Important in Infectious Disease Control?
Hand sanitizer plays a crucial role in preventing the
transmission of pathogens. It is particularly useful in settings where soap and water are not readily available. Regular use can reduce the spread of viruses like influenza and the
coronavirus, contributing to public health safety.
How Effective is Hand Sanitizer?
The effectiveness of hand sanitizer largely depends on its alcohol content. The Centers for Disease Control and Prevention (CDC) recommends that hand sanitizers should contain at least 60% alcohol to be effective. Alcohol-based sanitizers can quickly reduce the number of microbes on hands but may not eliminate all types of germs, such as
norovirus and certain bacteria that cause diarrhea.
When Should Hand Sanitizer be Used?
Hand sanitizer is ideal for use when soap and water are not available, especially in healthcare settings. It is recommended after touching potentially contaminated surfaces, before eating, and after using the restroom when handwashing facilities are inaccessible. However, it should not replace handwashing with soap and water when hands are visibly dirty or greasy.Are There Limitations to Using Hand Sanitizer?
Hand sanitizer is less effective on visibly dirty or greasy hands and may not remove harmful chemicals, such as pesticides and heavy metals. Overuse can also cause skin irritation or dryness due to the alcohol content. Additionally, some pathogens have a
resistance to alcohol-based sanitizers, so proper handwashing remains essential.
Can Hand Sanitizer be Used on Children?
Hand sanitizer can be used on children, but it should be applied under adult supervision to prevent ingestion. Swallowing hand sanitizer can be toxic due to its high alcohol content. It’s important to ensure that the sanitizer is fully dried on the hands to minimize any risk.How to Properly Use Hand Sanitizer?
To use hand sanitizer effectively, apply a generous amount to the palm of one hand, then rub your hands together, covering all surfaces of your hands and fingers, until they are dry. This process should take around 20 seconds. Using too little sanitizer or wiping it off before it dries can reduce its efficacy.What Are Some Alternatives to Alcohol-Based Hand Sanitizers?
For those who cannot use alcohol-based products, there are non-alcohol based hand sanitizers that use other
antimicrobial agents, such as benzalkonium chloride. However, these alternatives might not be as effective against certain viruses. Handwashing with soap and water remains the best method for reducing the number of germs on hands.
Conclusion
Hand sanitizer is a valuable tool in the fight against infectious diseases, offering a convenient way to reduce the spread of germs in everyday situations. Its effectiveness is maximized when used correctly and in conjunction with other hygiene practices. Understanding its benefits and limitations ensures that individuals can make informed decisions to protect themselves and others from infections.
