wmwt5828

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?:abstract	ABSTRACT OBJECTIVE: To estimate the seroprevalence of SARS-CoV-2 in the state of Maranhão, Brazil METHODS: A population-based household survey was performed, from July 27, 2020 to August 8, 2020 The estimates considered clustering, stratification and non-response Qualitative detection of IgM and IgG antibodies was performed in a fully-automated Elecsys® Anti-SARS-CoV-2 electrochemiluminescence immunoassay on the Cobas® e601 analyzer (Roche Diagnostics) RESULTS: In total, 3,156 individuals were interviewed Seroprevalence of total antibodies against SARS-CoV-2 was 40 4% (95%CI 35 6-45 3) Population adherence to non-pharmaceutical interventions was higher at the beginning of the pandemic than in the last month SARS-CoV-2 infection rates were significantly lower among mask wearers and among those who maintained social and physical distancing in the last month compared to their counterparts Among the infected, 26 0% were asymptomatic The infection fatality rate (IFR) was 0 14%, higher for men and older adults The IFR based on excess deaths was 0 28% The ratio of estimated infections to reported cases was 22 2 CONCLUSIONS: To the best of our knowledge, the seroprevalence of SARS-CoV-2 estimated in this population-based survey is one of the highest reported The local herd immunity threshold may have been reached or might be reached soon ABSTRACT OBJECTIVE: To estimate the seroprevalence of SARS-CoV-2 in the state of Maranhão, Brazil. METHODS: A population-based household survey was performed, from July 27, 2020 to August 8, 2020. The estimates considered clustering, stratification and non-response. Qualitative detection of IgM and IgG antibodies was performed in a fully-automated Elecsys® Anti-SARS-CoV-2 electrochemiluminescence immunoassay on the Cobas® e601 analyzer (Roche Diagnostics). RESULTS: In total, 3,156 individuals were interviewed. Seroprevalence of total antibodies against SARS-CoV-2 was 40.4% (95%CI 35.6-45.3). Population adherence to non-pharmaceutical interventions was higher at the beginning of the pandemic than in the last month. SARS-CoV-2 infection rates were significantly lower among mask wearers and among those who maintained social and physical distancing in the last month compared to their counterparts. Among the infected, 26.0% were asymptomatic. The infection fatality rate (IFR) was 0.14%, higher for men and older adults. The IFR based on excess deaths was 0.28%. The ratio of estimated infections to reported cases was 22.2. CONCLUSIONS: To the best of our knowledge, the seroprevalence of SARS-CoV-2 estimated in this population-based survey is one of the highest reported. The local herd immunity threshold may have been reached or might be reached soon. OBJECTIVE: To estimate the seroprevalence of SARS-CoV-2 in the state of Maranhão, Brazil. METHODS: A population-based household survey was performed, from July 27, 2020 to August 8, 2020. The estimates considered clustering, stratification and non-response. Qualitative detection of IgM and IgG antibodies was performed in a fully-automated Elecsys® Anti-SARS-CoV-2 electrochemiluminescence immunoassay on the Cobas® e601 analyzer (Roche Diagnostics). RESULTS: In total, 3,156 individuals were interviewed. Seroprevalence of total antibodies against SARS-CoV-2 was 40.4% (95%CI 35.6-45.3). Population adherence to non-pharmaceutical interventions was higher at the beginning of the pandemic than in the last month. SARS-CoV-2 infection rates were significantly lower among mask wearers and among those who maintained social and physical distancing in the last month compared to their counterparts. Among the infected, 26.0% were asymptomatic. The infection fatality rate (IFR) was 0.14%, higher for men and older adults. The IFR based on excess deaths was 0.28%. The ratio of estimated infections to reported cases was 22.2. CONCLUSIONS: To the best of our knowledge, the seroprevalence of SARS-CoV-2 estimated in this population-based survey is one of the highest reported. The local herd immunity threshold may have been reached or might be reached soon.
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?:creator	<https://research.tib.eu/covid-19/entity/Silva%2C_Ant%C3%B4nio_Augusto_Moura_da%3B_Lima-Neto%2C_L%C3%ADdio_Gon%C3%A7alves%3B_Azevedo%2C_Concei%C3%A7%C3%A3o_de_Maria_Pedrozo_E_Silva_de%3B_Costa%2C_L%C3%A9a_M%C3%A1rcia_Melo_da%3B_Bragan%C3%A7a%2C_Maylla_Luanna_Barbosa_Martins%3B_Barros_Filho%2C_Allan_Kardec_Duailibe%3B_Wittlin%2C_Bernardo_Bastos%3B_Souza%2C_Bruno_Feres_de%3B_Oliveira%2C_Bruno_Luciano_Carneiro_Alves_de%3B_Carvalho%2C_Carolina_Abreu_de%3B_Thomaz%2C_Erika_Barbara_Abreu_Fonseca%3B_Sim%C3%B5es-Neto%2C_Eudes_Alves%3B_Leite_J%C3%BAnior%2C_Jamesson_Ferreira%3B_Cosme%2C_L%C3%A9cia_Maria_Sousa_Santos%3B_Campos%2C_Marcos_Adriano_Garcia%3B_Queiroz%2C_Rejane_Christine_de_Sousa%3B_Costa%2C_S%C3%A9rgio_Souza%3B_Carvalho%2C_Vit%C3%B3ria_Abreu_de%3B_Sim%C3%B5es%2C_Vanda_Maria_Ferreira%3B_Alves%2C_Maria_Teresa_Seabra_Soares_de_Brito_E%3B_Santos%2C_Alcione_Miranda_Dos> <https://research.tib.eu/covid-19/entity/Silva%2C_Ant%C3%B4nio_Augusto_Moura_da%3B_Lima-Neto%2C_L%C3%ADdio_Gon%C3%A7alves%3B_Azevedo%2C_Concei%C3%A7%C3%A3o_de_Maria_Pedrozo_e_Silva_de%3B_Costa%2C_L%C3%A9a_M%C3%A1rcia_Melo_da%3B_Bragan%C3%A7a%2C_Maylla_Luanna_Barbosa_Martins%3B_Barros_Filho%2C_Allan_Kardec_Duailibe%3B_Wittlin%2C_Bernardo_Bastos%3B_Souza%2C_Bruno_Feres_de%3B_Oliveira%2C_Bruno_Luciano_Carneiro_Alves_de%3B_Carvalho%2C_Carolina_Abreu_de%3B_Thomaz%2C_Erika_Barbara_Abreu_Fonseca%3B_Sim%C3%B5es-Neto%2C_Eudes_Alves%3B_Leite_J%C3%BAnior%2C_Jamesson_Ferreira%3B_Cosme%2C_L%C3%A9cia_Maria_Sousa_Santos%3B_Campos%2C_Marcos_Adriano_Garcia%3B_Queiroz%2C_Rejane_Christine_de_Sousa%3B_Costa%2C_S%C3%A9rgio_Souza%3B_Carvalho%2C_Vit%C3%B3ria_Abreu_de%3B_Sim%C3%B5es%2C_Vanda_Maria_Ferreira%3B_Alves%2C_Maria_Teresa_Seabra_Soares_de_Brito_e%3B_Santos%2C_Alcione_Miranda_dos> <https://research.tib.eu/covid-19/entity/Silva%2C_Ant%C3%B4nio_Augusto_Moura_da_Lima-Neto_L%C3%ADdio_Gon%C3%A7alves_Azevedo_Concei%C3%A7%C3%A3o_de_Maria_Pedrozo_e_Silva_de_Costa_L%C3%A9a_M%C3%A1rcia_Melo_da_Bragan%C3%A7a_Maylla_Luanna_Barbosa_Martins_Barros_Filho_Allan_Kardec_Duailibe_Wittlin_Bernardo_Bastos_Souza_Bruno_Feres_de_Oliveira_Bruno_Luciano_Carneiro_Alves_de_Carvalho_Carolina_Abreu_de_Thomaz_Erika_Barbara_Abreu_Fonseca_Sim%C3%B5es-Neto_Eudes_Alves_Leite_J%C3%BAnior_Jamesson_Ferreira_Cosme_L%C3%A9cia_Maria_Sousa_Santos_Campos_Marcos_Adriano_Garcia_Queiroz_Rejane_Christine_de_Sousa_Costa_S%C3%A9rgio_Souza_Carvalho_Vit%C3%B3ria_Abreu_de_Sim%C3%B5es_Vanda_Maria_Ferreira_Alves_Maria_Teresa_Seabra_Soares_de_Brito_e_Santos_Alcione_Miranda_dos>
?:journal	Rev._saúde_pública_(Online) Rev_Saude_Publica
?:license	unk
?:publication_isRelatedTo_Disease	<https://research.tib.eu/covid-19/entity/COVID-19>
?:source	WHO
?:title	Population-based seroprevalence of SARS-CoV-2 and the herd immunity threshold in Maranhão
?:type	<https://research.tib.eu/covid-19/vocab/Publication>
?:who_covidence_id	#1023072 #745404 #983847
?:year	2020

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?:abstract

ABSTRACT OBJECTIVE: To estimate the seroprevalence of SARS-CoV-2 in the state of Maranhão, Brazil METHODS: A population-based household survey was performed, from July 27, 2020 to August 8, 2020 The estimates considered clustering, stratification and non-response Qualitative detection of IgM and IgG antibodies was performed in a fully-automated Elecsys® Anti-SARS-CoV-2 electrochemiluminescence immunoassay on the Cobas® e601 analyzer (Roche Diagnostics) RESULTS: In total, 3,156 individuals were interviewed Seroprevalence of total antibodies against SARS-CoV-2 was 40 4% (95%CI 35 6-45 3) Population adherence to non-pharmaceutical interventions was higher at the beginning of the pandemic than in the last month SARS-CoV-2 infection rates were significantly lower among mask wearers and among those who maintained social and physical distancing in the last month compared to their counterparts Among the infected, 26 0% were asymptomatic The infection fatality rate (IFR) was 0 14%, higher for men and older adults The IFR based on excess deaths was 0 28% The ratio of estimated infections to reported cases was 22 2 CONCLUSIONS: To the best of our knowledge, the seroprevalence of SARS-CoV-2 estimated in this population-based survey is one of the highest reported The local herd immunity threshold may have been reached or might be reached soon
ABSTRACT OBJECTIVE: To estimate the seroprevalence of SARS-CoV-2 in the state of Maranhão, Brazil. METHODS: A population-based household survey was performed, from July 27, 2020 to August 8, 2020. The estimates considered clustering, stratification and non-response. Qualitative detection of IgM and IgG antibodies was performed in a fully-automated Elecsys® Anti-SARS-CoV-2 electrochemiluminescence immunoassay on the Cobas® e601 analyzer (Roche Diagnostics). RESULTS: In total, 3,156 individuals were interviewed. Seroprevalence of total antibodies against SARS-CoV-2 was 40.4% (95%CI 35.6-45.3). Population adherence to non-pharmaceutical interventions was higher at the beginning of the pandemic than in the last month. SARS-CoV-2 infection rates were significantly lower among mask wearers and among those who maintained social and physical distancing in the last month compared to their counterparts. Among the infected, 26.0% were asymptomatic. The infection fatality rate (IFR) was 0.14%, higher for men and older adults. The IFR based on excess deaths was 0.28%. The ratio of estimated infections to reported cases was 22.2. CONCLUSIONS: To the best of our knowledge, the seroprevalence of SARS-CoV-2 estimated in this population-based survey is one of the highest reported. The local herd immunity threshold may have been reached or might be reached soon.
OBJECTIVE: To estimate the seroprevalence of SARS-CoV-2 in the state of Maranhão, Brazil. METHODS: A population-based household survey was performed, from July 27, 2020 to August 8, 2020. The estimates considered clustering, stratification and non-response. Qualitative detection of IgM and IgG antibodies was performed in a fully-automated Elecsys® Anti-SARS-CoV-2 electrochemiluminescence immunoassay on the Cobas® e601 analyzer (Roche Diagnostics). RESULTS: In total, 3,156 individuals were interviewed. Seroprevalence of total antibodies against SARS-CoV-2 was 40.4% (95%CI 35.6-45.3). Population adherence to non-pharmaceutical interventions was higher at the beginning of the pandemic than in the last month. SARS-CoV-2 infection rates were significantly lower among mask wearers and among those who maintained social and physical distancing in the last month compared to their counterparts. Among the infected, 26.0% were asymptomatic. The infection fatality rate (IFR) was 0.14%, higher for men and older adults. The IFR based on excess deaths was 0.28%. The ratio of estimated infections to reported cases was 22.2. CONCLUSIONS: To the best of our knowledge, the seroprevalence of SARS-CoV-2 estimated in this population-based survey is one of the highest reported. The local herd immunity threshold may have been reached or might be reached soon.

is ?:annotates of