Passage Summary: A doctor argues that just because some people get sick right after a vaccine doesn't mean the vaccine caused it; with so many people getting shots, some would have gotten sick anyway.

Conclusion: Reports of health issues occurring after vaccinations are not necessarily a reason to doubt the safety of vaccines.

Reasoning: Because millions of people are vaccinated annually, it is statistically certain that some individuals will experience health problems by pure coincidence shortly after their shots.

Analysis: The physician's argument relies on the concept of coincidence to dismiss safety concerns. To strengthen this claim, we need to bolster the idea that these health events are indeed random rather than causal. Look for an answer that suggests the rate of these health problems among vaccinated people is no higher than the rate among the general, unvaccinated population. This would provide the statistical evidence needed to support the 'coincidence' explanation.