According to a White House statement, president Joe Biden has tested positive for COVID-19.

They say he's experiencing "very mild symptoms," likely because he's vaccinated and has also received two booster shots so far.

In other words, it appears to be yet more evidence that vaccinations are indeed effective at preventing more severe symptoms of the disease — even for people of Biden's age. The president turned 79 in November.

He's not the first US president to test positive for COVID. In October 2020, president Donald Trump and his wife Melania both tested positive.

Biden will be participating in his planned meetings as scheduled "via phone and Zoom from the residence," according to the statement, to avoid infecting others.

He is also taking Paxlovid, a commonly used COVID treatment drug produced by vaccine maker Pfizer that's been shown to significantly reduce the risk of death from the coronavirus.

"Out of an abundance of transparency, the White House will provide a daily update on the President's status as he continues to carry out the full duties of the office while in isolation," the White House said.

Biden previously tested negative on Tuesday, they said.

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