US has been hit hard from the pandemic as it crosses 5,00,000 COVID-19 related deaths

Vaccines are rolling out but health experts are cautious due to uncertainties surrounding the British and South African variants of the virus.

from http://www.firstpost.com/tech/science/us-has-been-hit-hard-from-the-pandemic-as-it-crosses-500000-covid-19-related-deaths-9334981.html