The Importance of Sunscreen
As we spend more time outdoors during the warm summer months, it's important to protect our skin from the harmful effects of the sun.
How Long Does the Coronavirus Live on Surfaces?
A healthy person can then breathe in those droplets. You can also catch the virus if you touch a surface or object that has the virus on it and then touch your mouth, nose, or eyes.
Coronavirus: What you Need to Know
The coronavirus can live for hours to days on surfaces like countertops and doorknobs. How long it survives depends on the material the surface is made from.
Here's a guide to how long coronaviruses -- the family of viruses that includes the one that causes COVID-19 -- can live on some of the surfaces you probably touch on a daily basis. Keep in mind that researchers still have a lot to learn about the new coronavirus that causes COVID-19. For example, they don't know whether exposure to heat, cold, or sunlight affects how long it lives on surfaces.
Metal
Examples: doorknobs, jewelry, silverware
5 days
Wood
Examples: furniture, decking
4 days
Plastics
Examples: packaging like milk containers and detergent bottles, subway and bus seats, backpacks, elevator buttons
2 to 3 days
Stainless steel
Examples: refrigerators, pots and pans, sinks, some water bottles
2 to 3 days
Cardboard
Examples: shipping
boxes
24 hours
Copper
Examples: pennies, teakettles, cookware
4 hours
Aluminum
Examples: soda cans, tinfoil, water bottles
2 to 8 hours
Glass
Examples: drinking glasses, measuring cups, mirrors, windows
Up to 5 days
Ceramics
Examples: dishes, pottery, mugs
5 days
Paper
The length of time varies. Some strains of coronavirus live for only a few minutes on paper, while others live for up to 5 days.
Food
Coronavirus doesn't seem to spread through exposure to food. Still, it's a good idea to wash fruits and vegetables under running water before you eat them. Scrub them with a brush or your hands to remove any germs that might be on their surface. Wash your hands after you visit the supermarket. If you have a weakened immune system, you might want to buy frozen or canned produce.
Water
Coronavirus hasn't been found in drinking water. If it does get into the water supply, your local water treatment plant filters and disinfects the water, which should kill any germs.
Coronaviruses can live on a variety of other surfaces, like fabrics and countertops.
What You Can Do
To reduce your chance of catching or spreading coronavirus, clean and disinfect all surfaces and objects in your home and office every day. This includes:
- Countertops
- Tables
- Doorknobs
- Bathroom fixtures
- Phones
- Keyboards
- Remote controls
- Toilets
Use a household cleaning spray or wipe. If the surfaces are dirty, clean them first with soap and water and then disinfect them.
Keep surfaces clean, even if everyone in your house is healthy. People who are infected may not show symptoms, but they can still shed the virus onto surfaces.
After you visit the drugstore or supermarket, or bring in takeout food or packages, wash your hands for at least 20 seconds with soap and warm water. Do the same thing after you pick up a delivered newspaper.
SOURCE:
WebMD Medical Reference Reviewed by Hansa D. Bhargava, MD on March 23, 2020,
Article: Coronavirus and Surfaces: How Long Does COVID-19 Live on Surfaces?
SOURCES:
CDC: "How It Spreads," "Water Transmission and COVID-19."
FDA: "Food safety and the coronavirus disease 2019 (COVID-19)."
Harvard Medical School: "Coronavirus Resource Center."
Journal of Hospital Infection: "Persistence of coronaviruses on inanimate surfaces and their inactivation with biocidal agents."
New England Journal of Medicine: "Aerosol and surface stability of SARS-CoV-2 as compared with SARS-CoV-1."
News release, National Institutes of Health.
Purdue University: "Don't fear eating your fruits and veggies as virus concerns grip nation."
UC Davis: "Safe Handling of Fruits and Vegetables."
Video: Control Spread of Coronavirus
Jerome Adams, MD, MPH. 20th Surgeon General of the United States. John Whyte, MD, MPH. Chief Medical Officer, WebMD."How Long Does The Coronavirus Live On Surfaces?", www.webmd.com, https://www.webmd.com/lung/how-long-covid-19-lives-on-surfaces
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