- May 5, 2017
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A conspiracy monger on here posted a link to a list of 1000 peer reviewed papers that "questioned Covid vaccine safety."
Being confident that this person did not actually read any of them, and knowing that people compiling such lists usually do not read past the title of the things they find in keyword searches, I took a look at this list.
Very first paper on the list:
Nothingburger.
As I suspect the other 999 are. These kinds of lists are the results of keyword searches made by people with limited understanding of the tentative nature of science, especially health-related science, in pursuit of "victory" for their fringe beliefs.
Sad.
Being confident that this person did not actually read any of them, and knowing that people compiling such lists usually do not read past the title of the things they find in keyword searches, I took a look at this list.
Very first paper on the list:
Myocarditis following mRNA vaccination against SARS-CoV-2, a case series
Sounds serious. Let's take a look, emphases mine:
Introduction
mRNA COVID-19 vaccines have emerged as a new form of vaccination that has proven to be highly safe and effective against COVID-19 vaccination. Rare adverse events including myocarditis have been reported in the literature....
Four patients, ages 20 to 30, presented with myocarditis characterized by chest pain, elevations in troponin-I and C-reactive protein, and negative viral serologies two to four days following mRNA vaccine administration. One had a cardiac MRI showing delayed gadolinium enhancement in a subpericardial pattern. All experienced symptom resolution by the following day, and the two who have returned for follow-up had normal troponin-I and CRP values.
[...]
6. Discussion
This is among the first series to report multiple cases of myocarditis in adults following vaccination against SARS-CoV-2. All four patients were young, between 20 and 30. All presented with chest pain two to five days after their second vaccine dose. All had significantly elevated troponin-I levels. Though one had a viral prodrome, all had negative serologies. None reported prior COVID-19 infection. None had stigmata of autoimmune disease, and the one who underwent a rheumatologic workup while hospitalized had unremarkable autoimmune serologies. Reassuringly, the two patients who have returned for follow up in the weeks following discharge had normalized CRP values and denied symptom recurrence.
Myocarditis is most often caused by direct viral injury or by autoimmune mechanisms but has been sporadically linked to vaccination. Over 50 cases had been reported to the Department of Defense Smallpox Vaccination Program [3]. Myopericarditis has also been reported soon after vaccines against anthrax, haemophilus influenzae type b, hepatitis B virus, inactivated influenza, and live attenuated zoster vaccines [4].
Neither clinical trial reported adverse cardiac events including myocarditis [1], [2]. As vaccination rates increase among younger patients, however, several cases of post-vaccine myocarditis are being reported in adolescents and young adults [5], [6], [7]. In addition to these anecdotes, a multinational cohort study analyzed electronic health record databases and found the incidence of myocarditis and pericarditis among vaccine recipients aged 18 to 35 to be approximately 0.016% for women and 0.037% for men [8]. The CDC has since warned clinicians to be wary of post-vaccine myocarditis in teens and young adults [9]. It remains unclear why younger patients are more prone to develop this adverse effect. A possible explanation could be related to the stronger immune response in younger patients, which can also explain the higher prevalence of side effects to the vaccines in this patient population [10].
While certainly a pattern worth exploring, this case series has numerous limitations, including a small sample size, variation in workup and treatment strategies, and retrospective analysis insufficient to establish causality. Nevertheless, the odds of incidental seronegative viral myocarditis occurring in four patients presenting to a single medical center within days of vaccine administration would be long. The authors would encourage further investigation and reporting of potential cases of post-vaccine myocarditis. The authors seek not to frustrate vaccination efforts, but rather to prepare patients and providers for a rare but potential adverse effect. Furthermore, the authors hope the dramatic improvement in all four patients will reassure those who do suffer from myocarditis following vaccination.
Sounds serious. Let's take a look, emphases mine:
Introduction
mRNA COVID-19 vaccines have emerged as a new form of vaccination that has proven to be highly safe and effective against COVID-19 vaccination. Rare adverse events including myocarditis have been reported in the literature....
Four patients, ages 20 to 30, presented with myocarditis characterized by chest pain, elevations in troponin-I and C-reactive protein, and negative viral serologies two to four days following mRNA vaccine administration. One had a cardiac MRI showing delayed gadolinium enhancement in a subpericardial pattern. All experienced symptom resolution by the following day, and the two who have returned for follow-up had normal troponin-I and CRP values.
[...]
6. Discussion
This is among the first series to report multiple cases of myocarditis in adults following vaccination against SARS-CoV-2. All four patients were young, between 20 and 30. All presented with chest pain two to five days after their second vaccine dose. All had significantly elevated troponin-I levels. Though one had a viral prodrome, all had negative serologies. None reported prior COVID-19 infection. None had stigmata of autoimmune disease, and the one who underwent a rheumatologic workup while hospitalized had unremarkable autoimmune serologies. Reassuringly, the two patients who have returned for follow up in the weeks following discharge had normalized CRP values and denied symptom recurrence.
Myocarditis is most often caused by direct viral injury or by autoimmune mechanisms but has been sporadically linked to vaccination. Over 50 cases had been reported to the Department of Defense Smallpox Vaccination Program [3]. Myopericarditis has also been reported soon after vaccines against anthrax, haemophilus influenzae type b, hepatitis B virus, inactivated influenza, and live attenuated zoster vaccines [4].
Neither clinical trial reported adverse cardiac events including myocarditis [1], [2]. As vaccination rates increase among younger patients, however, several cases of post-vaccine myocarditis are being reported in adolescents and young adults [5], [6], [7]. In addition to these anecdotes, a multinational cohort study analyzed electronic health record databases and found the incidence of myocarditis and pericarditis among vaccine recipients aged 18 to 35 to be approximately 0.016% for women and 0.037% for men [8]. The CDC has since warned clinicians to be wary of post-vaccine myocarditis in teens and young adults [9]. It remains unclear why younger patients are more prone to develop this adverse effect. A possible explanation could be related to the stronger immune response in younger patients, which can also explain the higher prevalence of side effects to the vaccines in this patient population [10].
While certainly a pattern worth exploring, this case series has numerous limitations, including a small sample size, variation in workup and treatment strategies, and retrospective analysis insufficient to establish causality. Nevertheless, the odds of incidental seronegative viral myocarditis occurring in four patients presenting to a single medical center within days of vaccine administration would be long. The authors would encourage further investigation and reporting of potential cases of post-vaccine myocarditis. The authors seek not to frustrate vaccination efforts, but rather to prepare patients and providers for a rare but potential adverse effect. Furthermore, the authors hope the dramatic improvement in all four patients will reassure those who do suffer from myocarditis following vaccination.
Nothingburger.
As I suspect the other 999 are. These kinds of lists are the results of keyword searches made by people with limited understanding of the tentative nature of science, especially health-related science, in pursuit of "victory" for their fringe beliefs.
Sad.