22/11/2021 - 09:00 - 18:00
PE20 - Epidemiologia das doenças transmissíveis - Covid-19 (TODOS OS DIAS) |
37747 - SEVERE ACUTE RESPIRATORY SYNDROME CORONAVIRUS 2. SEROEPIDEMIOLOGYSTUDY IN ARGENTINIAN SLUM
SILVANA FIGAR - HOSPITAL ITALIANO DE BUENOS AIRES, VANINA PAGOTTO - HOSPITAL ITALIANO DE BUENOS AIRES, LORENA LUNA - MINISTRY OF HEALTH, JULIETA SALTO - MINISTRY OF HEALTH, MAGDALENA WAGNER MANSLAU - MINISTRY OF HEALTH, ALICIA S. MISTCHENKO - HOSPITAL DE NIñOS DR R. GUTIÉRREZ, ANDREA GAMARNIK - FUNDACIÓN INSTITUTO LELOIR-CONICET, ANA MARÍA GÓMEZ SALDAñO - MINISTRY OF HEALTH, FERNÁN GONZÁLEZ BERNALDO DE QUIRÓS - MINISTRY OF HEALTH
Most countries in Latin America have already reported thousands of confirmed cases and vulnerable populations are the most affected by the coronavirus disease 2019 (COVID-19) pandemic. Preventive measures such as hygiene, social distancing, and isolation, essential to stop the spread of coronavirus, are difficult to accomplish for vulnerable populations due to their living conditions. Seroepidemiological surveys are
assets to measure the transmission for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Until July 1st, the incidence rate of SARS-CoV-2 infection in Barrio Padre Mugica, one of the largest slums in Buenos Aires City, was 5.9%. This study aimed to establish the prevalence of SARS-CoV-2 antibodies immunoglobulin G(IgG) immediately after the outbreak, and to identify neighbourhood, household and individual factors associated with seroconversion. The prevalence based on IgG was 53.4% (95% CI 52.8% to 54.1%). For each polymerase chain reaction (RT-qPCR) confirmed case, nine people tested IgG positive, indicating a high rate of undetected
(probably asymptomatic) infections. Hence, the high rate of undiagnosed people suggests that clinical criteria and epidemiological nexus should be considered. The high seroprevalence observed in the context of an intense epidemic in a vulnerable area might serve as a reference to other countries. This study contributes to future decision making by understanding population immunity against SARS-CoV2 and its relation to living conditions and foccus that comprehensive biosocial, household-level interventions are needed.
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