The United States may allow coronavirus infections to run rampant to achieve "Herd immunity".<br />However, the death toll would be massive especially among vulnerable people.<br />Dr. Anthony Fauci is the top infectious doctor in the US and the director of the NIAID.<br />The NIAID is the National Institute of Allergy and Infectious Diseases, reports CNN.<br />Fauci explained the risks during a live Instagram session with actor Matthew McConaughey.<br />"If everyone contracted it, even with the relatively high percentage of people without symptoms ... a lot of people are going to die."<br />The reality is the herd immunity is only a possibility, not a guarantee, and many would die.