Vaccines and abortion
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As compared with data from two historical cohorts that represent the lower and upper ranges of spontaneous-abortion risk,2,4 the cumulative risks of spontaneous abortion from our primary and sensitivity analyses were within the expected risk range (Figure 1). Limitations of our study include the lack of a control group of unvaccinated pregnant persons, the homogeneity of the participants in terms of racial and ethnic groups and occupation, the voluntary enrollment of the population, and the use of data reported by the participants themselves, including some data collected retrospectively. Nonetheless, our findings suggest that the risk of spontaneous abortion after mRNA Covid-19 vaccination either before conception or during pregnancy is consistent with the expected risk of spontaneous abortion; these findings add to the accumulating evidence about the safety of mRNA Covid-19 vaccination in pregnancy.5
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How about the risk of spontaneous combustion?
