AstraZeneca protection vs severe COVID lasts for one year — vaccine expert

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Metro Manila (CNN Philippines, August 16) — The AstraZeneca COVID-19 vaccine provides the longest protection against severe infection compared to other coronavirus shots available in the Philippines, the chief of the country's vaccine expert panel said Monday.

"Iyong AstraZeneca ang may pinakamahaba (AstraZeneca offers the longest protection). This is based on public data, not press releases. One year po sila," Dr. Nina Gloriani said during an interview with state-run PTV's Laging Handa.

Earlier this month, the company's country president Lotis Ramin said AstraZeneca's COVID-19 vaccine has "high level of protection against multiple variants," including the highly contagious Delta variant.

According to Dr. Gloriani, antibodies from China's Sinovac wane in less than six months; both Pfizer and Moderna may also offer protection for six months; while Janssen's data showed its protection remains robust for at least eight months.

"Kaya huwag tayo magmadali sa pagbo-boost," the health official said following reports that two individuals received their booster shots in Quezon City.

[Translation: So let's not rush into securing booster shots.]

The government has prohibited booster shots due to a lack of safety and efficacy data and an unstable supply of vaccines in the country.

READ: PH officials call out individuals who brag about getting 3 COVID vaccine shots

Dr. Gloriani said that while there are discussions about providing COVID-19 booster shots, the country is still short on vaccine supply to at least reach population protection.

"Mayroon naman napagusapan na may ibibigay pero subject to availability nitong mga bakuna na ito. Kasi uunahin pa rin natin ang population protection kasi hindi mangyayari ang protection kung konti pa lang ang nababakunahan," she said.

[Translation: There has been a talk that these vaccines will be given but subject to availability. We will still prioritize achieving population protection because this will not happen if only a few people are vaccinated.]