Evolution from mild symptoms to severe COVID-19 in vaccinated and unvaccinated outpatients in Acapulco, Mexico: follow-up of a case series

Key Points

• The research seeks to understand how mild COVID-19 symptoms can evolve into severe cases among vaccinated and unvaccinated individuals.
• Follow-up of COVID-19 outpatients in Acapulco, Mexico.
• Comparison between vaccinated and unvaccinated groups.
• Analysis of symptom progression over time.
• Vaccinated individuals showed a slower progression from mild to severe symptoms than unvaccinated individuals.
• Severe cases were more frequently observed in the unvaccinated group.
• Overall health outcomes differed significantly between the two groups.