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Can vaccinated individuals transmit COVID-19?

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Vaccinated individuals can still transmit COVID-19, although at a reduced rate compared to unvaccinated individuals. Studies have shown that vaccinated individuals exhibit milder disease severity, reduced hospital stays, and better outcomes, indicating potential vaccine efficacy against COVID-19 . Research on the effectiveness of various vaccines like BBIBP-CorV, BNT162b2, Gam-COVID-Vac, and ChAdOx1 revealed an overall risk of infection in the vaccinated population to be 0.53 compared to the unvaccinated, with a relative risk of 0.35 and a vaccine effectiveness of 65% overall . Mathematical models have also demonstrated that vaccine distribution can effectively suppress the spread of COVID-19, with parameters like vaccine distribution and acceleration of detection playing crucial roles in controlling the outbreak .

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Open access•Journal Article•DOI A mathematical model for policy of vaccinating recovered people in controlling the spread of COVID-19 outbreak M. M. M. Ihsanjaya, Nanang Susyanto - Show less +1 more 01 Jan 2023-AIMS mathematics	Vaccinated individuals can still transmit COVID-19, but vaccine distribution can effectively suppress the spread by controlling the outbreak through various parameters and policies.
Open access•Journal Article•DOI A New COVID-19 Pandemic Model Including the Compartment of Vaccinated Individuals: Global Stability of the Disease-Free Fixed Point Isra Al-Shbeil, Noureddine Djenina, Ali Jaradat, Abdallah Al-Husban, Adel Ouannas, Giuseppe Grassi - Show less +5 more 21 Jan 2023-Mathematics 4 Citations	Vaccinated individuals are not addressed in the paper regarding their ability to transmit COVID-19.
Open access•Journal Article•DOI Effect of partially and fully vaccinated individuals in some regions of India: A mathematical study on COVID-19 outbreak M. Sai Aakash, C. Gunasundari - Show less +1 more 01 Jan 2023-Communications in mathematical biology and neuroscience	Partially and fully vaccinated individuals play a crucial role in reducing COVID-19 transmission, as analyzed in regions like Tamil Nadu, Maharashtra, West Bengal, and Delhi in the study.
Open access•Journal Article•DOI Effectiveness of Vaccination in Preventing COVID-19: A Community Study Comparing Four Vaccines Zoran Kokić, Predrag Kon, Olgica Djurković-Djaković - Show less +2 more 24 Feb 2023-Vaccines	Vaccinated individuals have a lower risk of COVID-19 infection and transmission, with an overall vaccine effectiveness of 65%, varying by vaccine type.
Open access•Journal Article•DOI A study on clinicodemographic profile, severity, and outcome of Covid-19 in hospitalized vaccinated individuals at tertiary care centre Jayasri Helen Gali, Chirali Shah, B. Srutha Keerthi, Vi Thomas - Show less +3 more 28 Apr 2023-Lung India	Not addressed in the paper.

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Related Questions

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