FDA: Vaccines ‘still very useful’ despite drop in efficacy rate vs COVID-19 variants

Robie de Guzman   •   July 13, 2021   •   318

MANILA, Philippines ­– Available vaccines against novel coronavirus disease (COVID-19) are “still very useful’ in helping stem the spread of severe respiratory illness despite a decrease in their efficacy against coronavirus variants, the Food and Drug Administration (FDA) said.

In his report to President Rodrigo Duterte during the taped weekly briefing on Monday night, FDA director general Eric Domingo reiterated that COVID-19 vaccines remain effective despite a slight decrease in their efficacy, particularly against the Alpha and Delta variants.

Citing studies on the efficacy of the vaccines, the FDA chief said the data indicate that the US-made Pfizer vaccine has a high efficacy rate of about 95 percent against the original COVID-causing virus.

Against the Alpha variant, which was first detected in the United Kingdom, Pfizer’s vaccine efficacy rate decreased to somewhere less than 10 to 20 percent, Domingo said.

For the Beta variant, which was first reported in South Africa, Pfizer’s vaccine efficacy rate dropped by 20 to 30 percent.

Against the Delta variant, which first emerged in India, Pfizer’s vaccine efficacy rate declined to about 10 to 20 percent.

“Ibig sabihin po maganda pa rin naman po ang kanyang coverage,” Domingo said.

US-made Moderna vaccine has an efficacy rate of 94.1 percent against the original virus but is 10 to 20 percent less effective against Alpha and Delta variants, and 20 to 30 percent against Beta.

British-Swede-made AstraZeneca vaccine has an efficacy rate of 74 percent is less than 10 to 20 percent effective against Alpha and Delta variants, and 20 to 30 percent against Beta.

Russia-made Sputnik V has an efficacy rate of about 91 percent but is less than 10 percent effective against Alpha variant, and 20-30 percent against Beta variant. Its efficacy rate against Delta variant is still being studied.

Single dose US-made Janssen vaccine has an efficacy rate of 70.3 percent against the original virus but is less than 10-20 percent effective against Alpha, up to 30% less effective against Beta, and less than 10 percent against Delta variant.

China-made Sinovac has an efficacy rate of 83.5 percent against the original strain, based on recently concluded trial in Turkey. Against Alpha variant, it was found to be less than 10 percent effective, and 10-30 percent against Beta. No available data yet on its efficacy rate against the Delta variant.

Another China-made vaccine, Sinopharm has a 76.29 percent efficacy rate against the original coronavirus strain, but less than 10 percent effective against the Alpha variant and up to 20 percent less effective against Beta. Its efficacy against the Delta variant is still being studied.

“Ang mga variant po, nababawasan nang kaunti ‘yung efficacy ng vaccine pero hindi naman po siya nawawala ‘no, nagiging very useful pa rin naman po,” Domingo said.

The FDA chief then urged the public to get vaccinated as available jabs offer a certain degree of protection against COVID-19.

Brunei donates 2,000 doses of AstraZeneca COVID-19 vaccine to PH

Aileen Cerrudo   •   October 21, 2021

MANILA, Philippines— Around 2,000 doses of AstraZeneca COVID-19 vaccine donated by the Brunei government to the Philippines  arrived at Ninoy Aquino International Airport (NAIA) on Wednesday.

The said shipment will be allotted for the vaccination of the general public, according to National Task Force against COVID-19 special adviser Dr. Teodoro Herbosa,

Herbosa expressed his gratitude to the government of Brunei on behalf of the Philippines for the vaccine donation.

As of October 20, a total of 91,548,620 COVID-19 vaccine doses from various manufacturers have arrived in the Philippines. AAC

Rollout ng 3rd COVID-19 vaccine dose, pinaghahandaan na – DOH

Robie de Guzman   •   October 18, 2021

MANILA, Philippines – Tiniyak ng Department of Health (DOH) na pinaghahandaan na nito ang roll out ng ikatlong dose ng COVID-19 vaccine para sa mga health worker (A1), senior citizen (A2) at immunocompromised individuals (A3).

Ayon kay Health Undersecretary Maria Rosario Vergeire, ang hakbang na ito ay batay sa rekomendasyon ng Strategic Advisory Group of Experts on Immunization ng World Health Organization (WHO) na pagbibigay ng dagdag na COVID-19 vaccine shot sa mga nabanggit na grupo na tumanggap ng Sinovac at Sinopharm brands.

Ngunit para maisagawa ito, sinabi ni Vergeire na kailangang maamyendahan ang emergency use authorization ng mga bakuna sa bansa na ang nakasaad na dosing regimen ay dalawa lamang, at isa naman para sa Janssen vaccine.

“Mangyayari lang po iyan kapag nakapaglabas ang Food and Drug Administration ng emergency use authority. Kung matatandaan natin, ang EUA natin para sa mga bakunang meron tayo ay para lang sa pirimary series natin. Ibig sabihin, dalawang doses for most of the vaccine, and sa isang bakua natin Janssen, it’s just one dose, to get fully vaccinated,” ani Vergeire.

Ipinaliwanag rin ng DOH ang kaibahan ng third dose sa booster dose ng bakuna.

Ani Vergeire, ang third dose ay ibinibigay para sa grupo o populasyon ng mga taong mataas ang risk ng infection at walang sapat na immunity kaya nangangailangan sila ng isa pang dosing regimen ng kanilang natanggap na bakuna.

“Third dose, ito ay ibinibigay as part of the primary series. Kung matatandaan niyo in our list of vaccines that we currently use katulad ng Hepatitis B at iba pa nating bakuna, tatlong doses sila,” paliwanag ni Vergeire.

“As the evidence grow further na nabigyan ng kumpletong ebidensya, naipakita ng bakuna na kapag binigyan ng third dose mas nabo-boost ang immune response ng tao and that is the additional dose,” dagdag pa niya.

Ang booster dose naman ay ibinibigay ilang buwan pagkatapos ng primary dosing kapag bumaba na ang immunity ng isang nabakunahan nito.

“When we talk about boosters, itong nakareceive na ng primary series ng bakuna, ibig sabihin fully vaccinated na at naka-receive na ng dalawang dose o di kaya Janssen ang nakuha mo naka-receive ka na ng isang dose,” ani Vergeire.

Hanggang ngayon aniya ay pinag-aaralan pa ng mga eksperto ang pagbibigay ng booster shot.

Wala rin pang rekomendasyon ang WHO ukol rito lalo’t limitado pa rin ang supply ng COVID-19 vaccines.

WHO backs 3rd COVID-19 vaccine shot for elderlies, immunocompromised

Robie de Guzman   •   October 14, 2021

MANILA, Philippines – The World Health Organization (WHO) on Thursday expressed support to proposals seeking to administer a third dose of COVID-19 vaccine to immunocompromised people who were not able to develop full immunity after receiving two doses.

WHO representative to the Philippines Dr. Rabindra Abeyasinghe said they are advocating for a third dose for immunocompromised individuals as an extended primary vaccination course.

Senior citizens who also received two doses of COVID-19 vaccine made either by Sinovac or Sinopharm should also be given a third shot of the same vaccine brand.

“Our recommendation is that in addition to immunocompromised individuals, that we include all individuals who have received primary vaccination of two doses with Sinovac or Sinopharm to receive a third dose provided it’s more than 3 months since the completion of their first 2 doses,” he said.

“We don’t have a recommendation for general population,” he added.

The Philippine government has yet to decide on the issue of giving a booster shot but it earlier said it has allocated a budget for its procurement next year.


The Philippine Broadcast Hub

UNTV, 915 Barangay Philam,

EDSA, Quezon City M.M. 1104

(+632) 8396-8688 (Tel)

info@untv-newsandrescue.com (General inquiries)


UNTV is a major TV broadcast network with 24-hour programming. An Ultra High Frequency station with strong brand content that appeal to everyone, UNTV is one of the most trusted and successful Philippine networks that guarantees wholesome and quality viewing experience.