More and more countries are looking at switching to different Covid-19 vaccines for the second dose or booster shots amid delays in supply and safety issues that have slowed their vaccination campaign.
Some medical studies to test the efficacy of the Switching Covid-19 vaccine are ongoing.
The mixed schedule, where the Pfizer vaccine shot was given after Astrazeneca’s shot, produced more antibodies than two Astrazeneca shots, an Oxford study said on June 28.
The following are Countries that weigh, or have decided to adopt, such a solution: Bahrain * Bahrain said on June 4 that qualified candidates can receive booster shots from Pfizer / Bionth or Sinopharm vaccine, regardless of the shot at first take.
Canada * The State National Advisory Committee on immunization said on June 17 that the provinces had to offer the first dose recipients of different Astrazeneca vaccines for their second dose, CBC News reported.
The Committee has said earlier this month that people were first injected with Astrazeneca shots could choose to receive different vaccines for their second dose.
Italy * The Italian Medical Agency AIFA said on June 14 that people under 60 years inoculated with the first dose of Astrazeneca’s shot can receive a different second shot.
Russia * Russia can start trials on the Covid-19 vaccine that combines Vacine Sputnik V and various Chinese shots in Arab countries, the Interfax news agency quotes RDIF RDIF Sovereign Wealth Fund Adage at 4.
RDIF also says that no negative side effects found During the clinical trial combining the Covid-19 vaccine using AstraZeneca and Sputnik V shots, Interfax reported.
South Korea * South Korea said on June 18 that around 760,000 people inoculated with the first dose of AstraZeneca would receive the Pfizer Jab as a second shot due to the delay of delivery with a global vaccine sharing scheme.
Spain * Health Minister Carolina Darias said on May 19 Spain will allow people under 60 years who received Astrazeneca’s shot first to get the second dose of the AstraZeneca or Pfizer vaccine, after the initial results of the study by Carlos III Health Institute supported by the state.
United Arab Emirates * The United Arab Emirates have made a Pfizer Vaccine / Bionnech Coronavirus available as a booster shot for those who originally immunized with a vaccine developed by the China National Pharmaceutical Group (Sinopharm).
Representatives from Mubadala Health, part of the state funds, said different vaccines can be given as a booster shot but this at the wisdom and health professional recipient does not make recommendations.
United Kingdom * Novavax said on May 21 will take part in a mixed vaccine trial and matches from June in the UK to test the use of additional vaccine doses from different amplifiers.
The United States * US National Institute of Health (NIH) said on June 1 has begun clinical trials in adults who are fully vaccinated to evaluate safety and immunogenicity from different vaccine shots.