A recent peer-reviewed study conducted in Japan has found that approximately 70 percent of deaths reported in the country after receiving the Pfizer COVID-19 vaccine occurred within the first 10 days of vaccination. The study, published in the journal Cureus, examined the link between the Pfizer vaccine and deaths within this specific timeframe.
The research team divided the analysis into two groups: Group 1 included individuals aged 65 and above, while Group 2 consisted of people aged 64 and younger. In Group 1, which comprised 662 adult men and 649 adult women, there were a total of 1,311 deaths reported. In Group 2, there were 247 deaths, with 155 males and 92 females.
The study revealed that both groups experienced a similar percentage of deaths within the first 10 days after vaccination, with 71 percent in Group 1 and 70 percent in Group 2. However, there were some differences in terms of gender distribution. In Group 1, more women than men died during the initial 10-day period, while after this timeframe, more deaths were reported among males. In Group 2, over twice the number of men died compared to women within the first 10 days, but overall deaths after this period were only slightly higher among men.
The analysis also highlighted that many of the post-vaccine deaths occurred on the first day, followed by the third and fourth days. Autopsies were conducted in only eight out of the 239 unexplained deaths cases. The most common causes of death among individuals aged 65 and above were ischemic heart disease, heart failure, and aspiration pneumonia or asphyxia. In Group 2, the leading causes of death were ischemic heart disease, cardiac arrhythmias, subarachnoid hemorrhage, and myocarditis or pericarditis.
The study authors acknowledged some limitations in their research. They mentioned that the number of days between vaccination and death may vary depending on treatment, and they did not consider the effects of COVID-19 vaccination after 11 days. Additionally, the sample size was relatively small, and not all deaths reported to the Ministry of Health, Labor, and Welfare were directly related to vaccination.
The researchers emphasized the importance of analyzing vaccine safety using statistical methods, particularly since vaccines are predominantly administered to healthy individuals. They believe that this study can provide valuable insights into assessing vaccine safety and understanding the potential risks associated with post-vaccination deaths.
