Sound advice - if we'll take it.

Some sound-looking advice at Foreign Policy on the coming pandemic.

During the SARS epidemic, I traveled all over China and Hong Kong, interviewed people infected with the virus, doctors and nurses treating the disease, government officials, police—everybody. I was never concerned that I would become infected, despite being in the room with sick individuals. And that’s because I knew what precautions to take. Here are the most important ones to know:

1. When you leave your home, wear gloves—winter mittens or outdoor gloves—and keep them on in subways, buses, and public spaces.

2. If you are in a social situation where you should remove your gloves, perhaps to shake hands or dine, do not touch your face or eyes, no matter how much something itches. Keep your hands away from contact with your face. And before you put your gloves back on, wash your hands thoroughly with soap and warm water, scrubbing the fingers. Put your gloves on.

3. Change gloves daily, washing them thoroughly, and avoid wearing damp gloves.

4. Masks are useless when worn outdoors and may not be very helpful even indoors. Most masks deteriorate after one or two wearings. Using the same mask day after day is worse than useless—it’s disgusting, as the contents of your mouth and nose eventually coat the inside of the mask with a smelly veneer that is attractive to bacteria. I rarely wear a face mask in an epidemic, and I have been in more than 30 outbreaks. Instead, I stay away from crowds, and I keep my distance from individual people—a half meter, about 1.5 feet, is a good standard. If someone is coughing or sneezing, I ask them to put on a mask—to protect me from their potentially contaminated fluids. If they decline, I step a meter (about 3 feet) away from them, or I leave. Don’t shake hands or hug people—politely beg off, saying it’s better for both of you not to come in close contact during an epidemic.

5. Inside your household, remove all of the towels from your bathrooms and kitchen immediately, and replace them with clean towels that have the names of each family member on them. Instruct everybody in your home to only use their own towels and never touch another family member’s. Wash all towels twice a week. Damp towels provide terrific homes for viruses, like common colds, flus, and, yes, coronaviruses.

6. Be careful with doorknobs. If it’s possible to open and close doors using your elbows or shoulders, do so. Wear gloves to turn a doorknob—or wash your hands after touching it. If anybody in your home takes sick, wash your doorknobs regularly. Similarly, be cautious with stairway banisters, desktops, cell phones, toys, laptops—any objects that are hand-held. As long as you handle only your own personal objects, you will be ok—but if you need to pick up someone else’s cell phone or cooking tools or use someone else’s computer keyboard, be mindful of not touching your face and wash your hands immediately after touching the object.

7. If you share meals, do not use your personal chopsticks and utensils to remove food from a serving bowl or plate and, of course, tell your children to never drink out of anybody else’s cups or from a container of shared fluid. It is customary in China to prepare several dishes for a meal and then allow everybody at the table to use their personal chopsticks to pull food from the common dishes: Don’t do this until the epidemic is over. Place serving spoons in each dish and instruct everybody at the table to scoop what they want from the serving dishes onto their personal plates or bowls, return the serving spoon to the main dish, and then use their personal chopsticks only to pick food from their personal plate or bowl into their mouth. Wash all food and kitchenware thoroughly between meals and avoid restaurants that have poor hygiene practices.

8. Absolutely do not buy, slaughter, or consume any live animal or fish until it is known what species was the source of the virus.

9. When the weather allows, open your windows at home or work, letting your space air out. The virus cannot linger in a well-ventilated space. But of course, if it is cold or the weather is inclement, keep warm and close those windows.

10. Finally, if you are caring for a friend or family member who is running a fever, always wear a tight-fitting mask when you are near them, and place one on the ailing person (unless they are nauseated). When you replace an old, dirty mask from the face of your friend or loved one be very, very careful—assume, for the sake of your protection, that it is covered in viruses, and handle it while wearing latex gloves, place it inside of a disposable container, seal it, and then put it in the trash. While wearing those latex gloves, gently wash the patient’s face with warm soap and water, using a disposable paper towel or cotton swab, and seal it after use in a container or plastic bag before placing it in your household trash. Wear long-sleeved shirts and clothing that covers your body when you are caring for your ailing friend or relative. Clean everything your patient wears or touches very thoroughly in hot soapy water, including sheets, towels, and utensils. If you have space, isolate the sick person in your household in a room, or a corner of a room, where they are comfortable, but separated from the rest of the household. If the weather is tolerable, open a window that is on the opposite side of the room, so that air gently blows past the patient’s face and then outdoors. Of course, don’t do this if it is very cold, as your friend or loved one will be made sicker if uncomfortably cold.

I hope somebody's running the numbers on a temporary halt to air travel from China to NZ. I expect that the cost of a temporary ban would be increasing at an increasing rate in the duration of a ban; the benefits would be increasing but at a decreasing rate. How contagious and fatal need the virus be for the marginal benefit curve to sit above the marginal cost one for a limited-duration travel hiatus? If it's contagious before there are symptoms, and each case infects more than 2 others (who each then go on to infect others), and the fatality rate is somewhere around 2%...

Anyway, be careful out there. And don't be offended if I decline any offered handshakes for a while.