<figure class="wp-block-image"><img src="https://media-cldnry.s-nbcnews.com/image/upload/newscms/2019_02/1401226/cleaning-faucet-today-main-190111.jpg" alt=""/></figure> <p><strong>Introduction</strong></p> <p>According to the CDC (Centers for Disease Control and Prevention), flu activity has been quite low over the last year. However, if you let your guard down, you’ll contract the flu virus. If there...