Sen. Ted Cruz is in self-quarantine after shaking hands with a person who later tested positive for COVID-19, he said Sunday.

Cruz, R-Texas, briefly spoke with the coronavirus patient while attending the Conservative Political Action Conference last month in Maryland, he announced in a news release.

The senator said he is quarantining himself at his home in Texas this week out of an abundance of caution. His short interaction with the infected person didn't warrant a quarantine under criteria from the Centers for Disease Control and Prevention, however, and medical officials told him it is unlikely he has contracted the illness.

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“I’m not experiencing any symptoms, and I feel fine and healthy,” Cruz said. “Given that the interaction was 10 days ago, that the average incubation period is 5-6 days, that the interaction was for less than a minute, and that I have no current symptoms, the medical authorities have advised me that the odds of transmission from the other individual to me were extremely low.”

Maryland authorities announced Saturday that a person who tested positive for the coronavirus attended the conference in National Harbor from Feb. 27 to March 1.

Among the speakers were President Donald Trump and Vice President Mike Pence, neither of whom were believed to be in "close proximity" to the attendee who had coronavirus, White House officials said.

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Doctors told Cruz that people who came in contact with him in the 10 days since the conservative conference shouldn’t be concerned about transmission. The Houston Health Department also tweeted Sunday night that anyone who met and shook hands with Cruz at a local event on Saturday is not at an increased risk for infection.

Cruz still urged everyone to follow the CDC's recommendations.

"Everyone should continue to treat this outbreak seriously and be driven by facts and medical science," he said. "We need to continue to be proactive in mobilizing resources to combat this outbreak."

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