Sumary of ‘Positive signs’ in vaccine mixing trials:
- A third study has reported its findings on mixing vaccines, with experts watching on closely to see if the ‘positive signs’ are present in the long term.
- It was also as good as or better than two shots of Pfizer-BioNTech,” weekly science journal Nature reported.
- Infectious diseases professor Peter Collignon said it was promising although more and extensive studies were needed on long term benefits as well as side effects.
- The peer-reviewed medical journal The Lancet also published findings from an Oxford and Nottingham University study involving more than 460 participants that showed an increase in immunity when a Pfizer inoculation followed an AstraZeneca jab.
- A cocktail of AstraZeneca and Pfizer vaccines may be beneficial in the short term but it was also about the long term benefits, said Immunisation Coalition chair Rod Pearce said.
- “The figures look good but we don’t know if it relates to long-term protection,” Dr Pearce said.
- ”The German trials did not report any severe side effects, no more so than for two shots of the same vaccine, Nature reported.
- This means that they are too small to pick up rare events such as the clotting conditions, which according to current estimates occur in around one in 50,000 people after the first Oxford-AstraZeneca vaccine dose and in less than one in 1.7 million after the second,” Nature reported.