Multiple Sublineages of Influenza A Virus (H5N1), Vietnam, 2005−2007
نویسندگان
چکیده
Phylogenetic analysis of influenza subtype H5N1 viruses isolated from Vietnam during 2005-2007 shows that multiple sublineages are present in Vietnam. Clade 2.3.4 viruses have replaced clade 1 viruses in northern Vietnam, and clade 1 viruses have been detected in southern Vietnam. Reassortment between these 2 sublineages has also occurred.
منابع مشابه
Establishment of multiple sublineages of H5N1 influenza virus in Asia: implications for pandemic control.
Preparedness for a possible influenza pandemic caused by highly pathogenic avian influenza A subtype H5N1 has become a global priority. The spread of the virus to Europe and continued human infection in Southeast Asia have heightened pandemic concern. It remains unknown from where the pandemic strain may emerge; current attention is directed at Vietnam, Thailand, and, more recently, Indonesia a...
متن کاملNew insights into clade 1 influenza A (H5N1) virus circulation in Cambodia and within the Southern Indochina peninsula
Results All viruses isolated in Cambodia since 2004 belong to clade 1, genotype Z. Based on phylogenetic relationships, HPAI H5N1 virus was probably introduced from Thailand in 2004. In 2005 and 2006, several sublineages emerged in Cambodia and were probably the result of multiple introductions of H5N1 virus from Vietnam where similar strains were detected before outbreaks occurred in Cambodia....
متن کاملPhylogenetic and Pathogenic Analyses of Avian Influenza A H5N1 Viruses Isolated from Poultry in Vietnam
Despite great efforts to control the infection of poultry with H5N1 viruses, these pathogens continue to evolve and spread in nature, threatening public health. Elucidating the characteristics of H5N1 avian influenza virus will benefit disease control and pandemic preparation. Here, we sequenced the genomes of 15 H5N1 avian influenza viruses isolated in Vietnam in 2006 and 2007 and performed ph...
متن کاملAvian influenza: update.
Avian influenza is an important zoonotic disease that has become endemic in Southeast Asia and in the case of highly pathogenic H5N1 has caused significant human mortality and morbidity. Avian influenza virus (AIV) infections may be asymptomatic or present as mild conjunctivitis in humans; however, H5N1 infections may present as severe pneumonia progressing to acute respiratory disease syndrome...
متن کاملMortality of wild swans associated with naturally infection with highly pathogenic H5N1 avian influenza virus in Iran
In the February 2006 in two wetlands in northern Iran, the mortality among wild swans was observed. Paralysis was the most prominent feature of the disease. Histologically, diffused necrosis of acinar cells in pancreas, degeneration and necrosis of some neurons in central nervous system (CNS), sever necrotic and hemorrhagic enteritis, foci of haemorrahge and myocardial cell necrosis in the he...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Emerging Infectious Diseases
دوره 14 شماره
صفحات -
تاریخ انتشار 2008