The objective of this study was to identify the potential and definite sources of transmission of coronavirus disease 2019 (COVID-19).

Due to time constraints and the acute nature of the pandemic, we searched only PubMed/Medline from inception until January 28, 2021. We analyzed the level of evidence and risk of bias in each category and made suggestions accordingly.

The virus was traced...

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused devastation in over 200 countries. Italy, Spain, and the United States (US) were most severely affected by the first wave of the pandemic. The reasons why some countries were more strongly affected than others remain unknown. We identified the most-affected and less-affected countries and states and explored environmental, host, and infrastructure...

This study analyzed trends in foodborne and waterborne diseases in South Korea between 2015 and 2019.

The data consisted of information on outbreaks of waterborne and foodborne infectious diseases reported through the Korea Centers for Disease Control and Prevention (KCDC) system. We analyzed the trends and epidemiological aspects of outbreaks by month, place of occurrence, and causative pathogens in this observational...

The objective of this study was to analyze the psychological outcomes of pregnant women during the coronavirus disease 2019 (COVID-19) pandemic in several areas that are epicenters for the spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Indonesia.

This cross-sectional study used data obtained from an online survey administered to 120 women who were pregnant and gave birth...

Healthcare workers (HCWs) are at a high risk of contracting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) due to the increased likelihood of clinical exposure during patient management. The study objective was to determine the seroprevalence of antibodies to SARS-CoV-2 and its predictors among hospital employees.

The cross-sectional study was conducted at a teaching hospital from August 2020 to September 2020...

The aims of this study were to examine the prevalence of overweight/obesity and to explore sex differences in body weight perceptions and correlates of weight gain among Black students at 2 historically Black colleges and universities (HBCUs) in the USA.

Participants completed a paper-based survey, and their height and weight were measured (67% completion rate).

The overweight and obesity rates were 33.8%...

This study aimed to identify sex differences in the association between depression and the risk of developing cardiovascular disease (CVD).

A secondary analysis was conducted of data from the fifth to seventh waves (2010−2018) of the Korea National Health and Nutrition Examination Survey. The participants were adults aged 30−74 years who had no diagnosis of CVD. The CVD risk was...

Fatigue is the most frequently reported symptom experienced by cancer patients and has a profound effect on their quality of life (QOL). The study aimed to determine the impact of fatigue on QOL among breast cancer patients receiving chemotherapy and to identify the risk factors associated with severe fatigue incidence.

This was an observational prospective study carried out at multiple centers....

The aims of this study were to analyze the characteristics of the 100 top-cited articles on scrub typhus (ST), and to assess the present research landscape and future research directions using bibliometric analysis.

Web of Science was used to conduct a bibliometric analysis of the 100 top-cited articles on ST. The articles were analyzed by publication year, number of citations, document...