| silent spread of dengue and dengue haemorrhagic fever to coimbatore and erode districts in tamil nadu, india, 1998: need for effective surveillance to monitor and control the disease. | dengue fever (df) or dengue haemorrhagic fever (dhf) has not previously been reported in coimbatore and erode districts in tamil nadu in india. in 1998, 20 hospitalized cases of fever tested positive for dengue virus igm and/or igg antibodies. all of them had dengue-compatible illness, and at least four had dhf. two of them died. sixteen cases were below 10 years of age. the cases were scattered in 15 distantly located villages and 5 urban localities that had a high aedes aegypti population. alt ... | 2000 | 11057977 |
| dengue vector prevalence and virus infection in a rural area in south india. | we conducted a 2-year (1997-1999) longitudinal, entomological and virological study in three dengue endemic villages in vellore district, tamil nadu, to understand the dynamics of dengue transmission. aedes aegypti (linn.), ae. albopictus (skuse) and ae. vittatus (bigot) were the prevalent vector species. aedes aegypti was breeding throughout the year with a breteau index ranging from 9.05 to 45.49. aedes albopictus and ae. vittatus were prevalent mainly in the rainy season. small water holding ... | 2004 | 15078269 |
| field- and laboratory-based active dengue surveillance in chennai, tamil nadu, india: observations before and during the 2001 dengue epidemic. | dengue cases are reported every year in the city of chennai, tamil nadu, india. since april 2001, longitudinal field- and laboratory-based active dengue surveillance has been carried out in chennai to study dengue trends. | 2004 | 15525913 |
| an entomological study on the dengue vectors during outbreak of dengue in tiruppur town and its surroundings, tamil nadu, india. | tiruppur town and its surroundings of tamil nadu state had reported the rise in dengue cases and some deaths during july, 2005. a team from nicd branch, coonoor investigated the outbreak of dengue during august, 2005. due to acute scarcity of water, people in tiruppur town and surrounding rural areas store water in cement tanks and other containers which facilitated the prolific breeding of the dengue vector mosquitoes. the aedes aegypti adult and larval survey conducted in randomly selected are ... | 2006 | 17370680 |
| susceptibility of immature stages of aedes (stegomyia) aegypti; vector of dengue and chikungunya to insecticides from india. | susceptibility of aedes aegypti to some insecticides in different geographic areas was conducted during dengue and chikungunya outbreak. at present, the only method of preventing dengue and chikungunya is to control the vector, which is the weakest link in vector-borne diseases. in our study, the susceptibility of a. aegypti collected from urban areas of delhi, mumbai, jodhpur, chennai and coimbatore was evaluated against temephos, fenthion, malathion and ddt. the a. aegypti from different locat ... | 2008 | 18172687 |
| natural vertical transmission of dengue viruses by aedes aegypti in chennai, tamil nadu, india. | dengue viruses are spread and maintained in an aedes aegypti-human- ae. aegypti cycle in urban areas of the tropics. dengue viruses are also maintained in nature by vertical transmission by ae. aegypti. a study was undertaken in chennai, a known endemic city in south india, to comprehend the natural vertical transmission dynamics in ae. aegypti and to assess its epidemiological importance. | 2008 | 18577796 |
| dengue and dengue haemorrhagic fever: indian perspective. | the relationship of this country with dengue has been long and intense. the ?rst recorded epidemic of clinically dengue-like illness occurred at madras in 1780 and the dengue virus was isolated for the ?rst time almost simultaneously in japan and calcutta in 1943-1944. after the ?rst virologically proved epidemic of dengue fever along the east coast of india in 1963-1964, it spread to allover the country.the ?rst full-blown epidemic of the severe form of the illness,the dengue haemorrhagic fever ... | 2008 | 19208969 |