Community-level SARS-CoV-2 Seroprevalence Survey in urban slum dwellers of Buenos Aires City, Argentina: a participatory research.

@article{Figar2020CommunitylevelSS,
  title={Community-level SARS-CoV-2 Seroprevalence Survey in urban slum dwellers of Buenos Aires City, Argentina: a participatory research.},
  author={Silvana Figar and Vanina Pagotto and Lorena Luna and J. Tornero Salt{\'o} and Magdalena Wagner Manslau and Alicia Susana Mistchenko and Andrea V. Gamarnik and Ana Mar{\'i}a Gomez Salda{\~n}o and Fern{\'a}n Gonz{\'a}lez Bernaldo de Quir{\'o}s},
  journal={medRxiv},
  year={2020}
}
Background By July 1st, the incidence rate of RT-qPCR SARS-CoV-2 infection was 5.9% in Barrio Padre Mugica, one of the largest slums in Buenos Aires City. This study aimed to establish the seroprevalence of SARS-CoV-2 three months after the first case was reported. Methods Between June 10th and July 1st, a cross-sectional design was carried out on people over 14 years old, selected from a probabilistic sample of households. A finger prick sample was tested by ELISA to detect IgG-class… Expand
SARS-CoV-2 in eight municipalities of the Colombian tropics: high immunity, clinical and sociodemographic outcomes
TLDR
The relationship between seropositivity and socio-economic status suggests a higher exposure risk to the virus caused by informal economic activities in low-income groups, and could be clinical predictors of infection by the new emergent coronavirus. Expand
Seroprevalence of anti-SARS-CoV-2 IgG in asymptomatic and pauci-symptomatic people over a 5 month survey in Argentina
TLDR
A low seroprevalence was observed in pauci-symptomatic and asymptomatic people, suggestive of a large population susceptible to the infection, and IgG antibodies tended to decrease over the end of this period regardless of symptoms. Expand
Long-Term Duration of Antibody Response to SARS CoV-2 in One of the Largest Slums of Buenos Aires
TLDR
The data indicate sustained humoral immunity for at least 6 months in a specific socio-economical setting in a population that was mainly asymptomatic for COVID-19, and a contraction in the overall IgG levels measured by ELISA. Expand
Seroprevalence and seroconversion rates to SARS-CoV-2 in interns, residents, and medical doctors in a University Hospital in Bogota, Colombia
TLDR
It is emphasized the importance of avoiding focusing only on symptomatic individuals to screen this population for SARS-CoV-2 infection, since of all individuals that have evidence of previous infection many may be pre-symptomatic or asymptomatic and may contribute to infection/disease spread. Expand
Estimating the Burden of SARS-CoV-2 among the Rohingya Refugees
TLDR
A probabilistic inference framework is developed, drawing on data sources from reported testing, cases, and deaths, to explore three scenarios of what might have happened among the Rohingya refugees and finds that under each scenario, a substantial outbreak likely occurred, though the cumulative size and timing vary considerably. Expand
Comparison of seroprevalence of SARS-CoV-2 infections with cumulative and imputed COVID-19 cases: Systematic review
TLDR
The findings show SARS-CoV-2 seroprevalence is well below “herd immunity” in all countries studied, and the estimated number of infections were much greater than the number of reported cases and deaths in almost all locations. Expand
Comparison of seroprevalence of SARS-CoV-2 infections with cumulative and imputed COVID-19 cases: systematic review
Accurate seroprevalence estimates of SARS-CoV-2 in different populations could clarify the extent to which current testing strategies are identifying all active infection, and hence the trueExpand
On the Effect of Age on the Transmission of SARS-CoV-2 in Households, Schools, and the Community
TLDR
Efforts should be undertaken to diminish mixing in younger adults, particularly individuals aged 18–35 years, to mitigate the spread of the epidemic in the community. Expand
Estimating the seroprevalence of SARS-CoV-2 infections: systematic review
TLDR
The seroprevalence of SARS-CoV-2 is mostly less than 10% with the level of infection lower in the general community, suggesting levels well below herd immunity. Expand
Emergency Response for Evaluating SARS-CoV-2 Immune Status, Seroprevalence and Convalescent Plasma in Argentina
TLDR
The importance of providing a robust and specific serologic assay for generating new information about antibody kinetics in infected individuals and mitigation policies to cope with pandemic needs is demonstrated. Expand
...
1
2
3
...

References

SHOWING 1-10 OF 20 REFERENCES
Prevalence of SARS-CoV-2 in Spain (ENE-COVID): a nationwide, population-based seroepidemiological study
TLDR
The majority of the Spanish population is seronegative to SARS-CoV-2 infection, even in hotspot areas, and results emphasise the need for maintaining public health measures to avoid a new epidemic wave. Expand
Seroprevalence of anti-SARS-CoV-2 IgG antibodies in Geneva, Switzerland (SEROCoV-POP): a population-based study
TLDR
The results suggest that most of the population of Geneva remained uninfected during this wave of the pandemic, despite the high prevalence of COVID-19 in the region, and highlight that the epidemic is far from coming to an end by means of fewer susceptible people in the population. Expand
Seroprevalence of SARS-CoV-2 in Hong Kong and in residents evacuated from Hubei province, China: a multicohort study
TLDR
The serological data suggest that SARS-CoV-2 is a new emerging virus, and the low seroprevalence suggests that most of the Hong Kong and Hubei population remain susceptible to COVID-19. Expand
Slum Health: Arresting COVID-19 and Improving Well-Being in Urban Informal Settlements
TLDR
A set of practice and policy suggestions that aim to dampen the spread of COVID-19 based on the latest available science, improve the likelihood of medical care for the urban poor whether or not they get infected, and provide economic, social, and physical improvements and protections to the urbanpoor that can improve their long-term well-being are offered. Expand
Spatial Disparities in Coronavirus Incidence and Mortality in the United States: An Ecological Analysis as of May 2020
  • Charlie H Zhang, G. G. Schwartz
  • Geography, Medicine
  • The Journal of rural health : official journal of the American Rural Health Association and the National Rural Health Care Association
  • 2020
TLDR
Although densely populated large cities and their surrounding metropolitan areas are hotspots of the pandemic, it is counterintuitive that incidence and mortality rates in some small cities and nonmetropolitan counties approximate those in epicenters such as New York City. Expand
The risk of COVID-19 transmission in favelas and slums in Brazil
TLDR
There are few proposals for coping with COVID-19 in favelas and slums, which lack differentiated strategies, considering their particularities and their spatial distribution. Expand
Seroprevalence of SARS-CoV-2-Specific Antibodies Among Adults in Los Angeles County, California, on April 10-11, 2020.
This population epidemiology study investigates the prevalence of IgG and IgM antibodies to SARS-CoV-2 in Los Angeles County, California, as a marker of both active and past infections.
The Role of Antibody Testing for SARS-CoV-2: Is There One?
TLDR
A brief summary of the performance of a number of serologic assays reported in the literature is provided, comment on what the authors do and do not know regarding their immune response to SARS-CoV-2, and number of scenarios for which serologic testing will play a role during their global response to this pandemic are provided. Expand
Targeting the World’s Slums as Fat Tails in the Distribution of COVID-19 Cases
  • R. Buckley
  • Medicine, Business
  • Journal of Urban Health
  • 2020
TLDR
The main conclusions of this note are that the scale of such assistance is likely to be larger than has so far been proposed, that in countries with limited testing ability slums provide one of the most effective places to target assistance, and that philanthropy has a role to play in supporting innovation. Expand
"Herd immunity": a rough guide.
  • P. Fine, K. Eames, D. Heymann
  • Medicine
  • Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
  • 2011
TLDR
Historical, epidemiologic, theoretical, and pragmatic public health perspectives on the concept of herd immunity are provided. Expand
...
1
2
...