Spatio-temporal patterns of the minimum rest time for outdoor workers exposed to summer heat stress in South Korea.

In this study, the spatio-temporal characteristics of the minimum rest time for the safety of South Korean outdoor workers during hot summer months (June to August) are examined based on the hourly wet-bulb globe temperature (WBGT) across 27 weather stations in South Korea. The WBGT thresholds in the work-rest recommendation of the Korea Occupational Safety and Health Agency (KOSHA 2017) for the quantification of the minimum rest time are evaluated through a comparison of the given thresholds with the occurrences of occupational heat-related illness patients due to outdoor work during hot summer months in South Korea. The long-term (2009-2018) average of the hourly WBGT values during summer months shows that outdoor workers with a moderate workload are exposed to heat stress during approximately 30% of the entire daytime working hours (06:00-18:00).

Phase 3 Efficacy Trial of Modified Vaccinia Ankara as a Vaccine against Smallpox.

Background: Many countries have stockpiled vaccines because of concerns about the reemergence of smallpox. Traditional smallpox vaccines are based on replicating vaccinia viruses; these vaccines have considerable side effects.

Methods: To evaluate the efficacy of modified vaccinia Ankara (MVA) as a potential smallpox vaccine, we randomly assigned 440 participants to receive two doses of MVA followed by one dose of the established replicating-vaccinia vaccine ACAM2000 (the MVA group) or to receive one dose of ACAM2000 (the ACAM2000-only group).

The Combined Effect of Sleep Duration and Quality on Mental Health Among Republic of Korea Armed Forces.

Sleep problems in the Republic of Korea Armed Forces have increased. This study analyzed the mental health impact of sleep duration and quality on personnel of the Republic of Korea Armed Forces. Data from the 2014 Military Health Survey were used.

Malaria in the Republic of Korea, 1993-2007. Variables related to re-emergence and persistence of Plasmodium vivax among Korean populations and U.S. forces in Korea.

Malaria was eradicated and the Republic of Korea (ROK) declared "malaria free" in 1979. However, in 1993, a temperate strain of vivax malaria, expressing both latent and nonlatent disease populations, re-emerged near the demilitarized zone (DMZ), rapidly spread to civilian sectors near the DMZ, and increased exponentially in ROK military, veteran, and civilian populations through 1998. Malaria among all ROK populations decreased 5-fold from a high of 4142 cases in 2000 to a low of 826 cases in 2004, before increasing again to 2180 cases by 2007.

Plasmodium vivax malaria among U.S. forces Korea in the Republic of Korea, 1993-2007.

Malaria is a significant health threat to U.S. combat forces that are deployed to malaria-endemic regions.

The war on severe acute respiratory syndrome: United States Forces Korea's campaign plan.

A mysterious new respiratory illness known as severe acute respiratory syndrome (SARS) has become the most perplexing infectious disease to emerge in the 21st century. From March to May 2003, it competed daily with the war in Iraq as the most sensational media event of the moment. U.

Field-user acceptability of new camouflage face paint formulations in the Republic of Korea.

New formulations of camouflage face paint (CFP), one with 30% N,N-diethyl-3-methylbenzamide (DEET) and the other without DEET, were evaluated for soldier-user acceptability during a military field-training exercise in the Republic of Korea. Soldiers testing the CFP formulations were members of one of four U.S.

Medical needs of tsunami disaster refugee camps.

Background And Objectives: In response to the massive tsunami disaster in South Asia, two Korean medical relief teams provided emergency medical care in the southern coastal area of Sri Lanka. Their findings are reported here to provide a realistic picture of medical needs created by the tsunami disaster and to enable a better-prepared medical response to future disasters of this type.

Methods: All victims of the tsunami in the area of operation of the two medical relief teams were encouraged to receive medical care.

A preliminary investigation of early smoking initiation and nicotine dependence in Korean adults.

Background: Few studies have investigated the association between age at smoking initiation and Fagerström test for nicotine dependence (FTND) in adulthood. The goal of this study was to develop the Korean version of FTND (FTND-K) and to examine the relationship between age at smoking initiation and nicotine dependence.

Methods: This investigation used data from 268 current smokers who visited the Center for Cancer Prevention and Early Detection in the National Cancer Center, Korea.

Vivax malaria: a continuing health threat to the Republic of Korea.

Vivax malaria reemerged in the Republic of Korea in 1993. Most of the cases occurred among soldiers in the region adjacent to the Demilitarized Zone (DMZ) until 1995. To determine the rate of dispersion of vivax malaria, we evaluated its epidemiologic characteristics.

Molecular epidemiological study for tick-borne disease (Ehrlichia and Anaplasma spp.) surveillance at selected U.S. military training sites/installations in Korea.

Vector-borne diseases are a potential public health threat to U.S. Forces Korea (USFK).

Hantavirus infection in an active duty U.S. Army soldier stationed in Seoul, Korea.

Hemorrhagic fever with renal syndrome has been described among the U.S. and the U.