Assuntos
Controle de Doenças Transmissíveis , Doenças Transmissíveis/diagnóstico , Doenças Transmissíveis/epidemiologia , Hepatite A/diagnóstico , Hepatite A/epidemiologia , Humanos , Programas de Imunização , Caxumba/diagnóstico , Caxumba/epidemiologia , República da Coreia/epidemiologia , Escarlatina/diagnóstico , Escarlatina/epidemiologiaRESUMO
Japanese encephalitis (JE) cases have been increasingly reported recently especially in Seoul and its vicinity. Pigs are known as amplifying host of JE virus (JEV), but do not play an important role in these recent events because pig-breeding is not common in Seoul. The distribution and the density of migratory birds are correlated with JE cases in cities and they might be highly potential hosts contributing to transmit JEV in metropolitan areas. JE genotype and sero-prevalence in birds should be determined for the verification of the transmission route of JEV in the recent sporadic occurrence of JE cases in Seoul.
Assuntos
Aves/virologia , Encefalite Japonesa/epidemiologia , Adulto , Idoso , Animais , Doenças Transmissíveis Emergentes/epidemiologia , Doenças Transmissíveis Emergentes/transmissão , Vetores de Doenças , Vírus da Encefalite Japonesa (Espécie)/genética , Vírus da Encefalite Japonesa (Espécie)/isolamento & purificação , Encefalite Japonesa/transmissão , Encefalite Japonesa/virologia , Genótipo , Humanos , Pessoa de Meia-Idade , Prevalência , República da CoreiaRESUMO
Dengue viral infection has rapidly spread around the world in recent decades. In Korea, autochthonous cases of dengue fever have not been confirmed yet. However, imported dengue cases have been increased since 2001. The risk of developing severe dengue in Korean has been increased by the accumulation of past-infected persons with residual antibodies to dengue virus and the remarkable growth of traveling to endemic countries in Southeast Asia. Notably, most of imported dengue cases were identified from July to December, suggesting that traveling during rainy season of Southeast Asia is considered a risk factor for dengue infection. Analyzing national surveillance data from 2011 to 2015, males aged 20-29 years are considered as the highest risk group. But considering the age and gender distribution of travelers, age groups 10-49 except 20-29 years old males have similar risks for infection. To minimize a risk of dengue fever and severe dengue, travelers should consider regional and seasonal dengue situation. It is recommended to prevent from mosquito bites or to abstain from repetitive visit to endemic countries. In addition, more active surveillance system and monitoring the prevalence asymptomatic infection and virus serotypes are required to prevent severe dengue and indigenous dengue outbreak.
