it's not impolite to ask them to wear a mask. if you can too, great! Immune system: take the multivitamins, chug oj, make sure youre eating 3 healthy and balanced meals a day. sleep!!! and stay very hydrated. Hand sanitize whenever you remember especially before eating. don't touch your face especially eyes nose mouth. bathe. they should do those too. disinfect door handles, light switches, high use surfaces, fridge handles, microwave pads, sink knobs. crack a window and use an air purifier.

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