A recent study indicates a strong correlation between the oral bacterium Streptococcus anginosus and increased stroke risk. Higher levels of this bacteria in the saliva and gut were observed in stroke patients, leading to a 20% increased risk and poorer outcomes. Conversely, bacteria like Anaerostipes hadrus and Bacteroides plebeius showed a protective effect, lowering stroke risk. The research highlights the importance of oral hygiene in stroke prevention and suggests that targeting harmful oral bacteria may be a potential preventative strategy. Further research is needed to confirm these findings in larger, more diverse populations.

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