Infectious diseases and the COVID-19 scenario in Brazil

Goldani, Luciano Zubaran; Salort, Shirlei Galarça

doi:10.1016/j.bjid.2020.07.002

Cited by 3 publications

(3 citation statements)

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“…We should also to point out that other infectious diseases, such as dengue, chikungunya, zika, and malaria continued to affect the Brazilian population in endemic areas, co-existing with the COVID-19 pandemic. Such outbreaks may result in symptoms that overlap with those due to the pandemic 35 .…”

Section: Positive Individuals (N = 849)mentioning

confidence: 99%

High prevalence of symptoms among Brazilian subjects with antibodies against SARS-CoV-2

Menezes

Victora

Hartwig

et al. 2021

Sci Rep

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Since the beginning of the pandemic of COVID-19, there has been a widespread assumption that most infected persons are asymptomatic. Using data from the recent wave of the EPICOVID19 study, a nationwide household-based survey including 133 cities from all states of Brazil, we estimated the proportion of people with and without antibodies for SARS-CoV-2 who were asymptomatic, which symptoms were most frequently reported, number of symptoms and the association with socio-demographic characteristics. We tested 33,205 subjects using a rapid antibody test previously validated. Information was collected before participants received the test result. Out of 849 (2.7%) participants positive for SARS-CoV-2 antibodies, only 12.1% (95% CI 10.1–14.5) reported no symptoms, compared to 42.2% (95% CI 41.7–42.8) among those negative. The largest difference between the two groups was observed for changes in smell/taste (56.5% versus 9.1%, a 6.2-fold difference). Changes in smell/taste, fever and body aches were most likely to predict positive tests as suggested by recursive partitioning tree analysis. Among individuals without any of these three symptoms, only 0.8% tested positive, compared to 18.3% of those with both fever and changes in smell or taste. Most subjects with antibodies against SARS-CoV-2 are symptomatic, even though most present only mild symptoms.

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Section: Positive Individuals (N = 849)mentioning

confidence: 99%

High prevalence of symptoms among Brazilian subjects with antibodies against SARS-CoV-2

Menezes

Victora

Hartwig

et al. 2021

Sci Rep

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“…Nevertheless, due to a combination of several factors, and in part characterized by no adoption of nationwide lockdown policies, poor screening for new cases and contradictory policies in managing the pandemic, all lead to a decrease in adhering to social distancing. This resulted in an increase of the pandemic's severity during the second wave [7] [8] [9].…”

Section: Introductionmentioning

confidence: 99%

Pain and Fatigue Perceptions of Patients with Systemic Autoimmune Myopathies before and during the COVID-19 Pandemic Period

Missé¹,

Borges²,

Correia³

et al. 2022

OJRA

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Objective: To assess general pain and fatigue and their association with the disease status of patients with systemic autoimmune myopathies (SAMs), in terms of the impact of the COVID-19 pandemic on these parameters. Methods: This is a cross-sectional and prospective cohort study that included 72 patients with SAMs who were matched by age and gender with 67 healthy individuals. The patients engaged in an interview via a validity survey to measure disease status, and assess a visual analog scale (VAS) for pain and fatigue in two periods: before (phase I) and during (phase II) of the Brazilian COVID-19 pandemic. For cross-sectional analysis, patients' data from phase I were compared to healthy individuals' information, whereas for prospective analysis, data of the patients who were assessed in phase II were compared to the same patients' data from phase I. Results: The patients had significantly more pain perception, comparable fatigue perception and fatigue severity, when compared to the healthy individuals. During the COVID-19 pandemic period, the disease activity, pain and fatigue perceptions, and fatigue severity remained unchanged. Despite this, the pain and fatigue perceptions correlated significantly with patients' VAS, the patient health outcome, and fatigue severity. In addition, the pain perception correlated to creatine phosphokinase, whereas fatigue perceptions correlated to physicians' VAS. Conclusions: The study showed that patients with SAMs have significantly increased pain perceptions compared to healthy individuals. During the COVID-19 pandemic period, the pain and fatigue perceptions remained unchanged in patients with SAMs but they correlated to several disease status parameters.

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“…These diseases lead to widespread mortality worldwide each year. 1 - 3 One of the most dangerous contagious diseases of the coronavirus family is coronavirus disease 2019 (COVID-19), the outbreak of which has occurred since late 2019. The transmission rate of this disease is very high and is spreading rapidly in the world.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Effective Reproduction Number (Rt) Estimation Methods of COVID-19 Using Simulation Data Based on Available Data from Iran, USA, UK, India, and Brazil

Karamoozian

Bahrampour

2022

J Res Health Sci

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Background: Accurate determination of the effective reproduction number (Rt) is a very important strategy in the epidemiology of contagious diseases, including coronavirus disease 2019 (COVID-19). This study compares different methods of estimating the Rt of susceptible population to identify the most accurate method for estimating Rt. Study Design: A secondary study. Methods: The value of Rt was estimated using attack rate (AR), exponential growth (EG), maximum likelihood (ML), time-dependent (TD), and sequential Bayesian (SB) methods, for Iran, the United States, the United Kingdom, India, and Brazil from June to October 2021. In order to accurately compare these methods, a simulation study was designed using forty scenarios. Results: The lowest mean square error (MSE) was observed for TD and ML methods, with 15 and 12 cases, respectively. Therefore, considering the estimated values of Rt based on the TD method, it was found that Rt values in the United Kingdom (1.33; 95% CI: 1.14-1.52) and the United States (1.25; 95% CI: 1.12-1.38) substantially have been more than those in other countries, such as Iran (1.07; 95% CI: 0.95-1.19), India (0.99; 95% CI: 0.89-1.08), and Brazil (0.98; 95% CI: 0.84-1.14) from June to October 2021. Conclusion: The important result of this study is that TD and ML methods lead to a more accurate estimation of Rt of population than other methods. Therefore, in order to monitor and determine the epidemic situation and have a more accurate prediction of the incidence rate, as well as control COVID-19 and similar diseases, the use of these two methods is suggested to more accurately estimate Rt.

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Infectious diseases and the COVID-19 scenario in Brazil

Cited by 3 publications

References 0 publications

High prevalence of symptoms among Brazilian subjects with antibodies against SARS-CoV-2

High prevalence of symptoms among Brazilian subjects with antibodies against SARS-CoV-2

Pain and Fatigue Perceptions of Patients with Systemic Autoimmune Myopathies before and during the COVID-19 Pandemic Period

Comparison of the Effective Reproduction Number (Rt) Estimation Methods of COVID-19 Using Simulation Data Based on Available Data from Iran, USA, UK, India, and Brazil

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