Around 70 percent of people who died in Japan after receiving a Pfizer COVID-19 vaccine lost their lives in the first 10 days following the jab, according to a recent study.
The peer-reviewed Japanese study, published in the Cureus journal on Dec. 7, looked at the association between Pfizer COVID-19 vaccination and deaths within 10 days of vaccination.
The risk period was defined as within 10 days of vaccination, with vaccination day being Day 1, and the control period defined as 11 to 180 days after vaccination.
The analysis was divided into two groups: Group 1 representing individuals aged 65 and above and Group 2, which included people aged 64 and below.
The researcher identified 1,311 deaths in Group 1, which included 662 males and 649 females. In Group 2, the team identified 247 deaths—155 males and 92 females.
“The percentage of reported cases that experienced death within 10 days after vaccination was 71 percent in Group 1 and 70 percent in Group 2,” said the study results.
Over-65s
In Group 1, more women than men died overall from various medical conditions in the first 10 days of vaccination. Following the 10 days, there were more deaths reported of men.
Most of the post-vaccine deaths happened on the second day, followed by the third and fourth days.
Other than “unexplained deaths,” the biggest cause of death in this group was ischemic heart disease (119 deaths), followed by heart failure (92), and aspiration pneumonia/asphyxia (72). Autopsies were performed in eight of the 239 unexplained death cases.
Group 2
In Group 2, over two times more men died than women from various medical conditions during the first 10 days of vaccination. Overall deaths after the initial 10 days were only slightly higher among men.
The highest number of post vaccination deaths were registered on the third day, followed by the fourth, second, and fifth days.
After “unexplained deaths,” the biggest cause of death in this group was ischemic heart disease (27 deaths), cardiac arrhythmias (24), subarachnoid hemorrhage (20), and myocarditis/pericarditis (17). Autopsies were conducted in nine out of the 51 unexplained deaths.
There was an outsized difference in male–female deaths owing to myocarditis/pericarditis during the “risk period,” with eight men dying compared to just one woman. Heart failure resulted in the deaths of nine men compared to two women.
