Washington: The United States will soon witness an explosive outbreak of the Covid Delta variant if the people are not fully vaccinated, warned an epidemiologist.


Epidemiologist Eric Feigl-Ding, who is also a public health scientist, said the “US has just one month to act before it becomes full-blown Delta variant dominant”.


“The US has just one month to act before it becomes full-blown Delta variant dominant. One month to slow it down. One month to fully vaccinate,” he tweeted.


Urging the US Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO) to take urgent steps to vaccinate people in the country, Feigl-Ding said: “But we likely have even less time than that if CDC doesn't act soon.”


“If the CDC doesn't issue new guidelines to stem the growth of #DeltaVariant, which can transmit via merely 5-10 seconds of passive breathing exposure, it will be extremely derelict,” he said.


"The Delta variant is leaps and bounds faster than any other variant known to date. It represents a clear and present danger to the world. This Delta variant surge will not end well for low vaccination areas,” he added.


Emphasizing the need for two doses of vaccines, Feigl-Ding said: “1 dose is definitely not enough.”


The epidemiologist urged the CDC for reversing its mask rule as countries like Australia and Israel are reimposing masks due to the Delta variant threat.