Origin of dengue type 3 viruses associated with the dengue outbreak in Dhaka, Bangladesh, in 2000 and 2001.
Dengue and dengue hemorrhagic fever re-emerged in Bangladesh in 2000 and 2001 and nearly all viruses isolated were dengue type 3. Phylogenetic analyses of the envelope genes of examples of these viruses indicated that they were most closely related to recently emerged dengue type 3 viruses from neighboring Thailand and Myanmar but distinct from those from India and Sri Lanka. Since this strain of dengue virus type 3 had not been associated with unusual patterns of disease in Thailand or Myanmar, it suggested that the outbreak in Bangladesh was due to local factors after the introduction of viruses from countries to the east rather than to the evolution of an unusually virulent strain of virus in Bangladesh.
Center for Health and Population Research, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh.
Goutam
G
Podder
Robert F
RF
Breiman
Tasnim
T
Azim
Hlaing Myat
HM
Thu
Niluka
N
Velathanthiri
Le Quynh
le Q
Mai
Kym
K
Lowry
John G
JG
Aaskov
D001459:Bangladesh / Q000453:epidemiology; D003715:Dengue / Q000453:epidemiology* / Q000821:virology*; D003716:Dengue Virus / Q000145:classification / Q000302:isolation & purification*; D004196:Disease Outbreaks; D006801:Humans; D017720:Molecular Epidemiology; D010802:Phylogeny; D019595:Severe Dengue / Q000453:epidemiology / Q000821:virology