MANILA – Fully vaccinated healthcare workers who opt to get a booster shot can choose their preferred Covid-19 vaccine brand, the Department of Health (DOH) said.
Under Department Memorandum 2021-0484, healthcare workers have the option to receive a homologous or heterologous booster dose depending on the availability of vaccine brands at the vaccination site.
Homologous dose is the administration of a vaccine from the same brand used to complete the primary vaccine series while the heterologous dose uses a vaccine from a different brand.
As a heterologous booster dose:
Individuals given Sinovac: may be given AstraZeneca, Pfizer, or Moderna
Individuals given AstraZeneca: may be given Pfizer or Moderna
Individuals given Gamaleya Sputnik V: may be given AstraZeneca, Pfizer, or a Moderna
Individuals given Ad26.COV2.s (Janssen): maybe given AstraZeneca, Pfizer, or Moderna
Individuals given Pfizer: may be given AstraZeneca or Moderna
Individuals given Moderna: may be given AstraZeneca or Pfizer
Starting November 17, medical front-liners can receive their booster shots. In getting one, healthcare workers must inform the vaccination site in advance about their preferred brand for the preparation of the vaccines.
Vector-based vaccines like AstraZeneca are recommended to be boosted with a different vaccine platform “due to the theoretical possibility of pre-existing immunity attenuating or weakening the immune response on the second or third dose,” the DOH said.
“Vaccine recipients with a previous history of adverse reactions after administration of Covid-19 vaccine – the elderly, people with comorbidities, people prone to blood clots, myocarditis, and anaphylaxis – shall consult their attending physician for the recommended boosting strategy,” the DOH said.
Health experts reiterate that all Covid-19 vaccines continue to protect against severe disease and deaths. (PNA)