WASHINGTON (REUTERS) - The US Centres for Disease Control and Prevention (CDC) on Thursday (May 13) advised that fully vaccinated people do not need to wear masks outdoors and can avoid wearing them indoors in most places, updated guidance the agency said will allow life to begin to return to normal.
The World Health Organization (WHO), though, voiced caution on Friday (May 14).
The CDC, which hopes the guidance will prod more Americans to get vaccinated, also said fully immunised people will not need to physically distance in most places.
The turnaround came just 16 days since CDC issued revised guidance that left many restrictions in place for vaccinated people. The agency came under fire in March for initially discouraging immunised grandparents to fly to visit loved ones.
CDC Director Rochelle Walensky said the new guidance was based on a sharp reduction in cases, expansion of vaccines to younger people and vaccine efficacy against coronavirus variants. "We followed the science here," said Walensky.
President Joe Biden emerged at the White House for remarks without a mask. "I think it's a great milestone, a great day," he said.
"If you're fully vaccinated and can take your mask off, you've earned the right to do something that Americans are known for all around the world: greeting others with a smile," he said, flashing a brief smile himself.
Biden earlier shed his mask during a meeting with lawmakers, Republican Senator Shelly Moore Capito told reporters. Some journalists at the White House also removed their masks.
The CDC had faced criticism, even from public health officials, that it has been too cautious in its guidance. Critics have said people need to see more benefit of getting vaccinated in terms of returning to normal activities.
"In the past couple of weeks, we have seen additional data to show these vaccines work in the real world, they stand up to the variants, and vaccinated people are less likely to transmit the virus," the agency said in a news release.
It added, "We needed to take the time to review the full body of evidence to get this right, and that's how we came to this decision."
The WHO on Friday said local conditions needed to be taken into account if a country is planning to allow vaccinated people not to wear masks in public.
"In the instance of a country that wishes to take away a mask mandate ... that should only be done in the context of considering both the intensity of transmission in the area and the level of vaccine coverage," WHO's top emergency expert, Mike Ryan, told a virtual briefing in Geneva.
'Need a reward'
Dr William Schaffner, an infectious disease doctor at Vanderbilt University Medical Center, said he supports the new guidance that many had been calling for.
"People in state health departments and infectious disease doctors have been saying this for some time because they're so impressed with the effectiveness of the vaccine, and also, they have the feeling that people who are vaccinated need a reward," he said.
Republican Senator Susan Collins called the guidance "overdue." "If people find they cannot do anything differently after a vaccine, they will not see the benefit in getting vaccinated," she said.
The revised guidance is a major step towards returning to pre-pandemic life, but the agency still recommends vaccinated people wear masks on planes and trains, and at airports, transit hubs, mass transit and places like hospitals and doctor's offices.
Officials in several states said they would immediately review existing mask requirements.
The Retail Industry Leaders Association said the announcement creates ambiguity because it fails to fully align with state and local orders.
"It is critical for customers to remember the CDC announcement is guidance and that many state and local jurisdictions still have mask mandates in place that retailers must follow."
Supermarket chain Kroger Co said it would keep its mask requirements in place "at this time."
Target Corp said it will continue requiring coronavirus safety measures in all stores, including masks and social distancing, while it reviews the guidance.
The United Food and Commercial Workers International Union (UFCW), which represents 1.3 million retail and grocery workers, called the new guidelines "confusing," adding it "fails to consider how it will impact essential workers who face frequent exposure to individuals who are not vaccinated and refuse to wear masks."
The US government last month extended mask requirements across transportation networks through Sept 13.
The Transportation Security Administration said it would "work closely with the CDC to evaluate the need for these directives." Walensky said CDC will soon issued updated transit guidance.
The new guidance says vaccinated Americans can resume all travel, do not need to quarantine after international trips and do not need to be tested for Covid-19 if exposed to someone who is Covid-19 positive but asymptomatic.
However, Americans still face some international travel restrictions, including non-essential trips to Canada. Masks became a political issue in the United States with then-President Donald Trump resisting mandating face coverings while President Joe Biden embraced masks and mandated them for transit hubs.
Some US states issued aggressive mask mandates while others declined or dropped them months ago.
The CDC said fully vaccinated people should still wear masks where required by federal, state, local, tribal or territorial laws, and abide by rules and regulations set by local businesses and workplaces.
In late April, the CDC said fully vaccinated people can safely engage in outdoor activities like walking and hiking without masks, but recommended their continued use in public spaces where they are required.
Immune-compromised individuals should consult doctors before shedding masks, and those who are not vaccinated should continue wearing them, Walensky said.