MANILA - Davao City Mayor Sara Duterte-Carpio on Thursday said she would undergo a self-quarantine after attending a Senate hearing in Manila.

Duterte-Carpio attended a Commission on Appointments hearing at the Senate hours before it was placed on lockdown on March 11 after one of the chamber’s guests tested positive for COVID-19. The Davao City Mayor also had a lunch meeting with Sen. Sherwin Gatchalian, who was in contact with the infected guest.

“She is now confined in an isolated bedroom at her residence and will continue to work through emails, messaging, and videotelecon,” a statement from the Office of the Davao City Mayor read.

“While Mayor Sara has not suffered from flu-like symptoms, she chose to undergo self-quarantine to protect others if she may be found to be sick in the next few days,” she said.

One of Carpio’s house helpers was also placed on quarantine after feeling “unwell” last night, it said.

Gatchalian and Sen. Nancy Binay, who attended a March 5 hearing where the COVID-19 patient was present, were also placed on self-quarantine.

The Senate building was placed on a lockdown for disinfection, Senate President Vicente Sotto III earlier said.

“We are just playing safe and lockdown will give us a chance for disinfection proceedings... Better to err on the side of caution,” he said.

“I’m optimistic that there is no real danger in the Senate,” he said.

The Philippines has recorded, as of Wednesday afternoon, 49 positive cases of COVID-19, from a new strain of coronavirus that started in Wuhan City, China.

COVID-19 may be fatal for the elderly, the immunocompromised, and those with underlying medical condition but 80 percent of cases globally showed a high chance of recovery "without needing special treatment," according to the World Health Organization.

WHO said COVID-19 symptoms include fever, tiredness, and dry cough. Some patients may have aches and pains, nasal congestion, runny nose, sore throat or diarrhea.