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Article
Multidisciplinary Sciences
Ana Basto-Abreu et al.
Summary: This study estimated the national and regional seroprevalence of SARS-CoV-2 antibodies in Mexico after the first wave from August to November 2020. The national seroprevalence was 24.9%, with lower rates among adults aged 60 and older. Higher seroprevalence was found in urban and metropolitan areas, low socioeconomic status, low education levels, and among workers. Among those with antibodies, 67.3% were asymptomatic. These findings highlight the importance of considering vulnerable groups in social distancing, lockdown measures, and vaccination programs.
NATURE COMMUNICATIONS
(2022)
Article
Immunology
Vanessa C. Nicolete et al.
Summary: The emergence of the Gamma variant of SARS-CoV-2 does not seem to have affected the age-specific attack rates and proportions of symptomatic infections in the Brazilian Amazon region.
EMERGING INFECTIOUS DISEASES
(2022)
Review
Immunology
Zhiru Gao et al.
Summary: Since the outbreak of COVID-19 at the end of December 2019, it has caused significant harm and challenges to over 200 countries and regions worldwide. Many patients with COVID-19 are asymptomatic or have only mild symptoms, yet they can still spread the virus, making screening for asymptomatic infections difficult and complicating national prevention and control efforts.
JOURNAL OF MICROBIOLOGY IMMUNOLOGY AND INFECTION
(2021)
Editorial Material
Public, Environmental & Occupational Health
Paulo Ricardo Martins-Filho et al.
JOURNAL OF TRAVEL MEDICINE
(2021)
Review
Infectious Diseases
Ali Rostami et al.
Summary: This study conducted a global systematic review and meta-analysis to estimate the global and regional SARS-CoV-2 seroprevalences, finding a global pooled seroprevalence of approximately 9.47% with significant heterogeneity. The highest and lowest seroprevalences were observed in Central and Southern Asia, as well as Eastern and South-eastern Asia. The study suggests that by mid-2021, the majority of the world's population remained highly susceptible to SARS-CoV-2 infection.
CLINICAL MICROBIOLOGY AND INFECTION
(2021)
Article
Medicine, General & Internal
Kristina L. Bajema et al.
Summary: This cross-sectional study indicates that as of September 2020, most people in the US did not have serologic evidence of previous SARS-CoV-2 infection, although the prevalence varied widely by jurisdiction. Seroprevalence surveys showed variations in infection rates between different sexes, age groups, and metropolitan/nonmetropolitan areas.
JAMA INTERNAL MEDICINE
(2021)
Article
Public, Environmental & Occupational Health
Aluisio J. D. Barros et al.
Summary: The study found that the seropositivity rate increased from 0.07% in early April 2020 to 18.2% in April 2021, with significant variations among different racial groups and levels of exposure. The proportion of the population infected by SARS-CoV-2 in the state is still far from achieving herd immunity, indicating the need for continued public health interventions.
REVISTA DE SAUDE PUBLICA
(2021)
Article
Public, Environmental & Occupational Health
Adriano Antunes de Souza Araujo et al.
Summary: A study in Sergipe state, Northeast Brazil showed a seroprevalence of 9.3% for COVID-19, with slightly higher rates in women compared to men. While there was a decline in SARS-CoV-2 antibody prevalence with age, the differences were not statistically significant. Metropolitan areas had a higher seroprevalence compared to municipalities outside the city.
EPIDEMIOLOGY AND INFECTION
(2021)
Letter
Public, Environmental & Occupational Health
Cliomar Alves dos Santos et al.
Summary: Since March 2020, 11 lineages of severe acute respiratory syndrome coronavirus 2 have been identified in Sergipe state, Northeast Brazil. During the first 6 months of the COVID-19 outbreak, there was a higher frequency of B.1 and B.1.1.33 lineages. During the second wave, there was an increased frequency of the new Brazilian variant of concern, P.1.
JOURNAL OF TRAVEL MEDICINE
(2021)
Article
Biochemistry & Molecular Biology
Felipe Gomes Naveca et al.
Summary: Analysis of circulating SARS-CoV-2 viruses during the first and second waves of COVID-19 in Amazonas, Brazil, shows successive lineage replacements led to predominance of the variant of concern P.1 and are associated with variable levels of social distancing.
Review
Multidisciplinary Sciences
Niklas Bobrovitz et al.
Summary: A systematic review and meta-analysis of 968 seroprevalence studies with 9.3 million participants from 74 countries found significant variations in SARS-CoV-2 antibody prevalence among different populations. Ethnic minorities and certain age groups were more likely to test positive for antibodies. National studies reported lower seroprevalence estimates compared to regional and local studies, with considerable variation across regions.
Letter
Public, Environmental & Occupational Health
Paulo R. Martins-Filho
JOURNAL OF INFECTION AND PUBLIC HEALTH
(2021)
Article
Health Care Sciences & Services
Saleema A. Karim et al.
Summary: This study investigated the differences in COVID-19 death rates between urban and rural areas in the United States, finding that rural counties had significantly lower death rates compared to metropolitan counties. Rural areas need to develop proactive prevention strategies and response plans to control the spread of COVID-19.
JOURNAL OF RURAL HEALTH
(2021)
Review
Infectious Diseases
Chih-Cheng Lai et al.
INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES
(2020)
Editorial Material
Medicine, General & Internal
Galit Alter et al.
NEW ENGLAND JOURNAL OF MEDICINE
(2020)
Article
Multidisciplinary Sciences
David W. S. Wong et al.
Review
Infectious Diseases
Lea A. Nikolai et al.
INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES
(2020)
Article
Regional & Urban Planning
Shima Hamidi et al.
JOURNAL OF THE AMERICAN PLANNING ASSOCIATION
(2020)
Article
Immunology
Hongyan Hou et al.
CLINICAL & TRANSLATIONAL IMMUNOLOGY
(2020)
