How long can influenza virus remain viable on objects (such as books and doorknobs)?
Studies have shown that influenza virus can survive on environmental
surfaces and can infect a person for 2 to 8 hours after being deposited
on the surface.
What kills influenza virus?
Influenza virus is destroyed by heat (167-212°F [75-100°C]). In
addition, several chemical germicides, including chlorine, hydrogen
peroxide, detergents (soap), iodophors (iodine-based antiseptics), and
alcohols are effective against human influenza viruses if used in
proper concentration for a sufficient length of time. For example,
wipes or gels with alcohol in them can be used to clean hands. The gels
should be rubbed into hands until they are dry.
*What if soap and water are not available and alcohol-based products are not allowed in my facility?
Though the scientific evidence is not as extensive as that on hand
washing and alcohol-based sanitizers, other hand sanitizers that do not
contain alcohol may be useful for killing flu germs on hands.
What surfaces are most likely to be sources of contamination?
Germs can be spread when a person touches something that is
contaminated with germs and then touches his or her eyes, nose, or
mouth. Droplets from a cough or sneeze of an infected person move
through the air. Germs can be spread when a person touches respiratory
droplets from another person on a surface like a desk, for example, and
then touches their own eyes, mouth or nose before washing their hands.
How should waste disposal be handled to prevent the spread of influenza virus?
To prevent the spread of influenza virus, it is recommended that
tissues and other disposable items used by an infected person be thrown
in the trash. Additionally, persons should wash their hands with soap
and water after touching used tissues and similar waste.
What household cleaning should be done to prevent the spread of influenza virus?
To prevent the spread of influenza virus it is important to keep
surfaces (especially bedside tables, surfaces in the bathroom, kitchen
counters and toys for children) clean by wiping them down with a
household disinfectant according to directions on the product label.
How should linens, eating utensils and dishes of persons infected with influenza virus be handled?
Linens, eating utensils, and dishes belonging to those who are sick do
not need to be cleaned separately, but importantly these items should
not be shared without washing thoroughly first.
Linens (such as bed sheets and towels) should be washed by using
household laundry soap and tumbled dry on a hot setting. Individuals
should avoid “hugging” laundry prior to washing it to prevent
contaminating themselves. Individuals should wash their hands with soap
and water or alcohol-based hand rub immediately after handling dirty
laundry.
Eating utensils should be washed either in a dishwasher or by hand with water and soap.