Over a year later, many people still live in fear of COVID-19. This pandemic has claimed millions of lives, has infected many more, and other dangerous variants are said to lurk just over the horizon. Even though the odds of developing a serious case may be low, it can still leave us feeling vulnerable. Anyone who has heard of the painful and often life-threatening symptoms that can accompany this disease is urged to take caution. But what kind of caution can we take? Other than wearing a mask and social distancing, what strategies for protection do we have? Experimental vaccines are now available through an Emergency Use Authorization, but not everyone is comfortable with this gene therapy solution. And for those who do take the shot, the treatment only promises to lessen symptom severity. Those who get vaccinated can still catch the disease and transmit it to others. For those …