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This CDC (right) photograph captured a sneeze in progress, revealing the plume of salivary droplets as they are expelled in a large cone-shaped array from this man's open mouth. The flu virus can spread in this manner and survive long enough on a doorknob or countertop to infect another person.

It dramatically illustrating the reason you should cover your mouth when sneezing or coughing to protect others from germ exposure, health officials say.

It’s also why you need to wash your hands a lot, on the assumptions others don’t always cover their sneezes. Credit: CDC/James Gathany

5 Essential Swine Flu Survival Tips
(From Livescience)

Meanwhile, there are a slew of suggestions out there for what you should do. Often the tips don't include enough detail for you to do it right. For example, you probably don't wash your hands effectively or often enough. And did you know you could be infected and spreading the flu up to a full day before you feel symptoms and up to seven days after you get sick?

So while waiting for a vaccine and the next bout of bad news, here are the top five essential things you can do to avoid getting sick and, importantly, avoid infecting others. These critical tips are widely agreed upon by the World Health Organization, the U.S. Centers for Disease Control and Prevention, and other health experts.

1. Wash your hands.

The best thing anyone could do right now to avoid swine flu, experts say, is to wash their hands. It sounds like a stupidly simple response to an overwhelming situation, but nearly compulsive hand-washing helps prevent the spread of this airborne respiratory disease. It's the droplets from coughing and sneezing that spread the disease. These get on our hands. And then everything we touch is infectious.

How you do it is important:

- Use warm or hot water if you can.

- Lather up and rub not just your fingers and palms but also under the fingernails, around the wrists and between the fingers for as long as it takes to sing "Happy Birthday" twice.

- Rinse well.

It is important to wash your hands before eating and after using the bathroom, but also after using a tissue or covering your mouth when you sneeze or cough, sick or not. So yes, that's a lot of hand-washing. Basically, think of how often you would wash your hands if you worked in an emergency room or operating room. Wash your hands that often and that thoroughly.

2. Cover your mouth when you cough or sneeze.

"The way you spread influenza is with droplets that come out of your mouth or nose," said Dr. George T. DiFerdinando Jr., a physician, epidemiologist and professor at the University of Medicine and Dentistry of New Jersey-School of Public Health. He recommends the classic shoulder or crook-of-the elbow sneeze.

"It's a whole lot better for those [droplets] to be on blouse or sleeve than spraying onto surfaces or other people," he said. Then ... you guessed it ... wash your hands.

Surgical face masks are an option for keeping your droplets to yourself, but they don't keep your hands clean and there is no consensus in the health care community on whether face masks are advisable for everyday use.

"If [the swine flu virus] is spreading throughout the community, it would not surprise me if people use [face masks] to good effect," DiFerdinando said.

3. Stay home.

If you're sick, stay home, DiFerdinando said. Try to muster the energy to wash your hands after you use tissues so you don't reinfect everything you touch afterward. This helps you recover, and protects your loved ones.

4. Don't touch your face.

Try, try, to keep your hands out of your mucous membranes — your eyes, nose and mouth — direct routes to the bloodstream that allow a virus to bypass the protective barrier of the skin. Few of us succeed at this fully.

"That's just human nature," DiFerdinando told LiveScience. "It's not something to moan about. In this circumstance you've got a very strong motivator to keep your hands clean. If you keep washing your hands, you decrease the dose [of flu virus] that you get when you put your hands in your mouth."

5. Avoid sick people

It's a good idea to avoid close contact with other people who are sick, DiFerdinando said, adding: "We won't even see air kisses." The flu virus tends not to float in the air. Instead, once dispersed, the liquid droplets tend to settle on objects that doctors call fomites — things that people touch that can pick up a virus. Examples include coins, hand rails, door knobs, common household and office objects. Smooth objects transmit microbes more than rough or porous ones. So, for instance, coins would allow one to pick up more virus than paper money.

Many of the US's cases currently are concentrated in New York City at two schools, which is not surprising to Dr. James Koopman, professor of epidemiology at the University of Michigan's School of Public Health.

"There is a lot of direct contact and touching of common things when children are in school," Koopman said. "They are in general more susceptible to these things."

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