January 26, 2021 A CONFIRMED Covid-19 positive air passenger is now under the custody of authorities shortly after the Davao City Government announced that he is wanted for tampering with his swab test result. The City Government posted around 8 p.m. Monday evening, January 25, that a certain Frederick Panol Grande was wanted after he was found to have presented a tampered reverse transcription-polymerase chain reaction (RT-PCR) test result upon arrival at the Francisco Bangoy International Airport, also known as Davao International Airport. "It was discovered that he tampered with his RT-PCR test result to indicate that he is negative of Covid-19. An email from the testing center proved that he faked the result," the City Government said in a Facebook post.