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The aforementioned vaccine sample is known to have reached the final stage of clinical trial (phase 3) with the participation of nearly 30,000 volunteers from various countries such as the United Kingdom, the United States, Brazil, and South Africa, and this may take several years to complete. confirm that this COVID-19 candidate vaccine is safe enough to be marketed.
A US-based health website called Stat News was the first news outlet to report on the incident and said on this website that details of the ‘adverse reactions’ are not yet known. found by UK volunteers, but according to one of their sources, these people will recover soon.
Global COVID-19 vaccine testing still faces many difficulties (Image: Reuters)
Additionally, all testing sites around the world for this COVID-19 vaccine will be disabled while an independent investigation is conducted to evaluate safety indicators to help authorities decide if testing can be restarted.
The company AstraZeneca also confirmed that the decision to discontinue testing for the COVID-19 vaccine, which it developed together with the University of Oxford, was made quickly after participants showed an ‘unknown symptom’. reason’.
Meanwhile, a spokesperson for the University of Oxford said in strange diseases or symptoms that can occur in large-scale testing sessions and confirmed that there will be independent and careful evaluations of signs seen in participants who tested the COVID-19 vaccine.
The United Kingdom is one of the countries that is ‘competing’ in the production of the COVID-19 vaccine (Image: CTA)
It is known that a COVID-19 vaccine trial suspension will be given immediately if participants are hospitalized when they have ‘unclear’ symptoms after vaccination, and this is also the second time that a COVID-19 vaccine candidate with the Oxford University study has been suspended from a clinical trial.
Previously, the COVID-19 vaccine, co-researched and developed by the University of Oxford and AstraZeneca, was considered one of the strongest candidates among COVID-19 vaccine candidates worldwide. There were expectations that this would be the first vaccine to hit the market after going through the first two “very successful” trials.
According to statistics from the World Health Organization (WHO), there are 180 COVID-19 vaccine candidates tested globally, but none of them have completed clinical trials and the organization also does not expect to have a vaccine that fully meets the guidelines. of safety and efficacy for approval this year, as it takes a long time to “prove everything.” things carefully. ‘
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