These  viruses are here to stay in evolutionary form.

Most viruses are beneficial. They drive evolution by transferring genes across species, play important roles in ecosystems and are essential to life.

Help your body deal with harmful viruses and bacteria.  Alkaline/acid level up your body immediately!  Vaccines tend to be effective when available,  but we can't just wait on their development.

I suggest each one do his/her own research for staying healthy in an environment heavy laden with harmful viruses and  bacteria.  

Here are a couple of proactive things I do.  Simple, effective, inexpensive and all natural.

ensure my system is kept clean by taking  a good dose of castor oil at least  monthly.  Some  baking soda mixed in the spoon makes it palatable.  You MUST keep the gut as clean as possible.
maintaining the correct pH balance in the  body is critical to optimising overall health and wellbeing.  pH balance is our best line of defense against sickness and disease and to increase health and vitality.
A pH of 0 indicates a high level of acidity.
A pH of 7 is neutral.
A pH of 14 is the most basic, or alkaline.

Currently I don't measure my ph level.  I plan to start soon.  

To boost my immune system and maintain my  ph level:

I have been drinking the concoction below 1-3 times daily for several years now.  Relieves joint pain also!

mixed in  a 6-8 ounce glass  of water;  1-2 Tbs raw all natural apple cider vinegar 'with the mother'; 1-3 tsp baking soda.  You can add other spices and flavoring of your choice.

I also drink upwards of 32 ounces green smoothies multiple times a week.

There are mixed reviews on the internet about its impact on acid reflux.

My doctor is kept in the loop on my consumption habits.  Sofar, I have avoided being filled up with all those pills.