Change in covid-19 risk over time following vaccination with CoronaVac: test negative case-control study by Hitchings, Matt D T, Ranzani, Otavio T, Lind, Margaret L, Dorion, Murilo, D’Agostini, Tatiana Lang, de Paula, Regiane Cardoso, de Paula, Olivia Ferreira Pereira, de Moura Villela, Edlaine Faria, Scaramuzzini Torres, Mario Sergio, de Oliveira, Silvano Barbosa, Schulz, Wade, Almiron, Maria, Said, Rodrigo, de Oliveira, Roberto Dias, Vieira da Silva, Patricia, de Araújo, Wildo Navegantes, Gorinchteyn, Jean Carlo, Dean, Natalie E, Andrews, Jason R, Cummings, Derek A T, Ko, Albert I, Croda, Julio

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Effectiveness of the CoronaVac vaccine in older adults during a gamma variant associated epidemic of covid-19 in Brazil: test negative case-control study by Ranzani, Otavio T, Hitchings, Matt D T, Dorion, Murilo, D’Agostini, Tatiana Lang, de Paula, Regiane Cardoso, de Paula, Olivia Ferreira Pereira, Villela, Edlaine Faria de Moura, Torres, Mario Sergio Scaramuzzini, de Oliveira, Silvano Barbosa, Schulz, Wade, Almiron, Maria, Said, Rodrigo, de Oliveira, Roberto Dias, Vieira da Silva, Patricia, de Araújo, Wildo Navegantes, Gorinchteyn, Jean Carlo, Andrews, Jason R, Cummings, Derek A T, Ko, Albert I, Croda, Julio

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Effectiveness of an inactivated Covid-19 vaccine with homologous and heterologous boosters against Omicron in Brazil by Ranzani, Otavio T., Hitchings, Matt D. T., de Melo, Rosana Leite, de França, Giovanny V. A., Fernandes, Cássia de Fátima R., Lind, Margaret L., Torres, Mario Sergio Scaramuzzini, Tsuha, Daniel Henrique, David, Leticia C. S., Said, Rodrigo F. C., Almiron, Maria, de Oliveira, Roberto D., Cummings, Derek A. T., Dean, Natalie E., Andrews, Jason R., Ko, Albert I., Croda, Julio

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Effectiveness of ChAdOx1 vaccine in older adults during SARS-CoV-2 Gamma variant circulation in São Paulo by Hitchings, Matt D. T., Ranzani, Otavio T., Dorion, Murilo, D’Agostini, Tatiana Lang, de Paula, Regiane Cardoso, de Paula, Olivia Ferreira Pereira, de Moura Villela, Edlaine Faria, Torres, Mario Sergio Scaramuzzini, de Oliveira, Silvano Barbosa, Schulz, Wade, Almiron, Maria, Said, Rodrigo, de Oliveira, Roberto Dias, Silva, Patricia Vieira, de Araújo, Wildo Navegantes, Gorinchteyn, Jean Carlo, Andrews, Jason R., Cummings, Derek A. T., Ko, Albert I., Croda, Julio

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Effectiveness of CoronaVac among healthcare workers in the setting of high SARS-CoV-2 Gamma variant transmission in Manaus, Brazil: A test-negative case-control study by Hitchings, Matt D.T., Ranzani, Otavio T., Torres, Mario Sergio Scaramuzzini, de Oliveira, Silvano Barbosa, Almiron, Maria, Said, Rodrigo, Borg, Ryan, Schulz, Wade L., de Oliveira, Roberto Dias, da Silva, Patricia Vieira, de Castro, Daniel Barros, Sampaio, Vanderson de Souza, de Albuquerque, Bernardino Cláudio, Ramos, Tatyana Costa Amorim, Fraxe, Shadia Hussami Hauache, da Costa, Cristiano Fernandes, Naveca, Felipe Gomes, Siqueira, Andre M., de Araújo, Wildo Navegantes, Andrews, Jason R., Cummings, Derek A.T., Ko, Albert I., Croda, Julio

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Effectiveness of the fourth dose of COVID-19 vaccines against severe COVID-19 among adults 40 years or older in Brazil: a population-based cohort study by Lazar Neto, Felippe, Hitchings, Matt D.T., Amin, Avnika B., de França, Giovanny V.A., Lind, Margaret L., Scaramuzzini Torres, Mario Sergio, Tsuha, Daniel Henrique, de Oliveira, Roberto D., Cummings, Derek A.T., Dean, Natalie E., Andrews, Jason R., Ko, Albert I., Croda, Julio, Ranzani, Otavio T.

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Effectiveness of the CoronaVac vaccine in older adults during a gamma variant associated epidemic of covid-19 in Brazil: test negative case-control study

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Effectiveness of the fourth dose of COVID-19 vaccines against severe COVID-19 among adults 40 years or older in Brazil: a population-based cohort studyResearch in context by Felippe Lazar Neto, Matt D.T. Hitchings, Avnika B. Amin, Giovanny V.A. de França, Margaret L. Lind, Mario Sergio Scaramuzzini Torres, Daniel Henrique Tsuha, Roberto D. de Oliveira, Derek A.T. Cummings, Natalie E. Dean, Jason R. Andrews, Albert I. Ko, Julio Croda, Otavio T. Ranzani

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