As the isolated DENV-3 strain possesses high sequence similarity to DENV-3 strains in neighboring regions, the data suggests local transmission of the virus in the African continent. However, further epidemiological studies would be needed to identify DENV outbreaks and ascertain the virus strains causing local outbreaks. Although close monitoring of febrile travelers provides data on DENV outbreaks in endemic regions, improved disease
surveillance and a higher priority in dengue laboratory diagnosis in Africa is vital to reflect the true incidence of the disease. Identification of genotypes and strains along with disease prevalence in endemic areas is of importance because some DENV strains have been associated with increased disease severity and may possess higher epidemic potential.[3, 4] Currently, there are no effective drugs or vaccines against DENV infection. Transmission see more of DENV within Africa presents challenges for diagnosis and effective disease management of febrile travelers returning from the continent. Additionally, there is a need for higher awareness toward the increasing risk of DENV infection
in travelers among health care personnel in both endemic and non-endemic regions. Thus, rapid and accurate diagnosis of DENV is particularly important for travelers returning from West Africa in which other viral hemorrhagic fevers, including yellow fever and Lassa fever are endemic. This work was supported by funding from Research on Emerging and Re-emerging Infectious Diseases by the Ministry of Health, Labor, and Welfare, Japan (H21-shinkou-ippan-005, www.selleckchem.com/products/Metformin-hydrochloride(Glucophage).html H23-shinkou-ippan-006, and H23-shinkou-ippan-010). The authors state that they have no
conflicts of interest. “
“There has been a great increase of Plasmodium vivax incidences in the Republic of Korea and the genetic diversity of the parasite became more complex with the rapid dissemination of newly introduced genotypes. Surveillance of imported malaria is very important, but there is no good way to determine imported vs. internal cases. In this study, we characterized imported vivax cases, analyzed the genetic sequence of three imported vivax malaria cases for the merozoite surface protein-1 Florfenicol (MSP-1) and circumsporozoite protein (CSP) genes, and clearly discriminated an imported vivax case that was misdiagnosed as indigenous by genetic analysis. PCR reaction for the merozoite surface protein-1 (MSP-1) and circumsporozoite protein (CSP) genes from three imported vivax cases were amplified and sequenced. The genetic variations were compared with a previously constructed database of South Korean isolates. The imported vivax cases showed various patterns on incubation period before onset. Most cases were from other parts of Asia. The MSP-1 gene sequence analysis of three imported cases showed that the imported cases had completely different sequences from any subtypes from Korean isolates.
Related posts:
- , 2008; De Baets et al, 2009) FAFLP is a high-resolution and re
- 3 More generally, the issue of measles in travelers is also of im
- In 1990 Goldstein, Brown and colleagues isolated and characterize
- This study demonstrates the high prevalence of rotavirus
- Almost 1 million Canadians travel annually to malaria endemic are