The Centers for Disease Control and Prevention (CDC) on Monday updated direction to state that Americans who have as of late been presented to somebody with COVID-19 for over 15 minutes and don’t have symptoms don’t have to get tested.

“You do not necessarily need a test unless you are a vulnerable individual or your health care provider or state or local public health officials recommend you take one,” the CDC said.

This is a change from past direction that said individuals who had gone through over 15 minutes with a person who has tested positive for the virus ought to likewise get tested, regardless of symptoms.

The U.S. has led in excess of 73 million tests this year, and around 6 million of them have returned positive. The CDC’s decision has been censured by some in the medical community.

“Our work on the ‘silent’ spread underscores the importance of testing people who have been exposed to COVID-19 regardless of symptoms,” Alison Galvani, an epidemiologist and director of the Center for Infectious Disease Modeling and Analysis, tweeted.

“This change in policy will kill.” It is assessed that up to 40% of individuals who have COVID-19 are asymptomatic, which means they don’t show common symptoms of an infection like coughing or muscle longs, as indicated by one exploration letter published in May in JAMA Network.