Mactan-Cebu International Airport (Facebook photo) CEBU CITY - Aside from proofs of vaccination, all inbound international passengers at Mactan-Cebu International Airport (MCIA) starting February 1 must present negative results of reverse transcription-polymerase chain reaction (RT-PCR) tests taken within 48 hours before departing the country of origin. The memo released Friday will apply to Filipinos and foreigners alike. A passenger who is unvaccinated, partially vaccinated, or whose vaccination cannot be validated must also have a negative RT-PCR test result, will be swabbed upon arrival, and must stay in a quarantine facility until the release of the second test taken on the fifth day after arrival. "Airline operators are enjoined to require international passengers traveling to Cebu to present proofs of their full vaccination from their place of origin upon check-in. Absence of said proof shall classify the traveler as unvaccinated or partially unvaccinated," said the me