Browsing by Author "Reuben, R"
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Item The 1964 epidemic of dengue-like fever in South India: isolation of chikungunya virus from human sera and from mosquitoes.(1965-08-01) Myers, R M; Carey, D E; Reuben, R; Jesudass, E S; De Ranitz, C; Jadhav, MItem Anopheles culicifacies species complex in Thenpennaiyar riverine tract, Tamil Nadu.(1983-04-01) Suguna, S G; Tewari, S C; Mani, T R; Hiriyan, J; Reuben, RItem Artificial breeding places for the study of Aedes aegypti breeding in a South Indian town.(1968-07-01) Reuben, RItem Artificial breeding places for the study of Aedes aegypti breeding in a South Indian town.(1968-07-01) Reuben, RItem Breeding of Anopheles stephensi (Liston) in wells and cisterns in Salem, Tamil Nadu.(1979-12-01) Batra, C P; Reuben, RItem Colour preferences of A. stephensi Liston in the laboratory--a short note.(1978-11-01) Das, P K; Reuben, RItem Comparative evaluation of bioassay and ELISA for detection of Japanese encephalitis virus in field collected mosquitos.(1995-03-01) Gajanana, A; Rajendran, R; Thenmozhi, V; Samuel, P P; Tsai, T F; Reuben, RComparative evaluation of enzyme-linked immunosorbent assay (ELISA) and bioassay (virus isolation in Toxorhynchites splendens larvae and identification by immunofluorescence test using virus specific monoclonal antibody) was carried out in order to define a suitable strategy for monitoring Japanese encephalitis virus infection in field mosquitos. A total of 8,850 adult female mosquitos in 177 pools (Culex tritaeniorhynchus 91, Cx. vishnui 59 and Cx. fuscocephala 27) collected from an endemic area of Tamil Nadu were examined by both the techniques. In ELISA, 9 pools which had optical densities (OD) equal to the mean of normal infected pools plus > or = 4 standard deviations (SD) mean considered positive and all of them were virus positive by the bioassay also. Sixty-five pools had OD = Mean + 2-3 SD and 103 pools had OD = Mean + < 2 SD of normal pools. From these groups, 12 (18.5%) and 8 (7.8%) pools respectively were found to be virus positive by the bioassay. In total 29 (16%) pools were positive by the bioassay as against 9 (5%) by ELISA. This study demonstrated that the bioassay is sensitive for estimation of true positives and ELISA is a rapid screening system. A protocol has now been developed for surveillance in which field pools are first screened by ELISA and only those with OD = Mean + > or 2 SD are assayed in Toxorhynchites. By excluding a large majority of pools with low OD (Mean + < 2 SD), which are likely to yield to only a small percentage of true positives, the cost, time and labor involved are greatly reduced.(ABSTRACT TRUNCATED AT 250 WORDS)Item A comparison of adult and larval house indices for Aedes aegypti in towns in southern India.(1979-06-01) Reuben, R; Soman, R SItem Composite fish culture for mosquito control in rice fields in southern India.(1994-09-01) Victor, T J; Chandrasekaran, B; Reuben, RComposite culture of edible fishes (common carp, Cryprinus carpio; silver carp, Hypopthalmithys molitrix, grass carp, Ctenopharyngodon idella; catla, Catla catla; rohu, Labeo rohita; and mrigal, Cirrhinus mrigala) in rice fields in the Cauvery delta of Tamil Nadu, southern India, resulted in 81.0% reduction in the immature mosquito population of anophelines and 83.5% of culicines. Analysis of fish feces for mosquito larval head capsules showed that common carp and silver carp are effective larvivores. The selective feeding of common carp on culicines and silver carp on anophelines is correlated to their trophic niches. Net profit in the fish-cum-rice fields was 2.5 times greater than fields in which rice alone was cultured. Hence, rice-cum-fish culture can be recommended to the farming community in this area.Item Control of Anopheles stephensi with larvicide and adulticide in Salem, Tamil Nadu.(1981-01-01) Batra, C P; Reuben, R; Kaur, R; Tewari, S C; Veeraraghavan, K; Palani, G; Jesuvan Singh, SItem Dengue outbreak in Vellore, southern India, in 1968, with isolation of four dengue types from man and mosquitoes.(1970-01-01) Myers, R M; Varkey, M J; Reuben, R; Jesudass, E SItem Density of Anopheles culicifacies Giles in relation to control measures along the river Thenpennai (Tamil Nadu).(1984-07-01) Mani, T R; Tewari, S C; Reuben, R; Devaputra, M; Hiriyan, JItem Epidemiological aspects of persistent malaria along the river Thenpennai (Tamil Nadu).(1984-07-01) Tewari, S C; Appavoo, N C; Mani, T R; Reuben, R; Ramadas, V; Hiriyan, JItem Evaluation of malathion space-spray as a supplementary control measure against Anopheles culicifacies Giles.(1987-07-01) Mani, T R; Rajendran, R; Sarangapani, T D; Tewari, S C; Narayanasamy, G; Devaputra, M; Pillai, P K; Reuben, RItem Feeding behaviour, age structure & vectorial capacity of Anopheles culicifacies Giles along the river Thenpennai (Tamil Nadu).(1984-07-01) Reuben, R; Mani, T R; Tewari, S CItem Host selection patterns in anophelines in riverine villages of Tamil Nadu.(1984-07-01) Tewari, S C; Mani, T R; Suguna, S G; Reuben, RItem Japanese encephalitis in India.(1997-03-01) Reuben, R; Gajanana, AJapanese encephalitis (JE), caused by a mosquito-borne virus was first recognised in India in 1955 and since then many major out-breaks from different parts of the country have been reported, predominantly in rural areas. Children are mainly affected, with morbidity rate estimated at 0.30 to 1.5 per 100,000 population. Case fatality rate has ranged from 10% to 60%, and up to 50% of those who recover may be left with neurological deficits. Reported incidence has generally been higher in males than in females, but subclinical infections have occurred equally in both sexes. A large number of subclinical infections occur each year during the transmission season. Diagnosis at the primary health centre (PHC) level is based on clinical symptoms only. Therefore, there is a need to develop simple tests for use at the peripheral level both for diagnosis and for epidemiological surveys. JE is a vaccine preventable disease, but there are many logistic problems for effective implementation of vaccination.Item Japanese encephalitis in South India. A summary of recent knowledge.(1969-01-01) Carey, D E; Myers, R M; Webb, J K; Reuben, RItem Japanese encephalitis studies in Vellore, South India. I. Virus isolation from mosquitoes.(1968-09-01) Carey, D E; Reuben, R; Myers, R MItem Japanese encephalitis studies in Vellore, South India. IV. Search for virological and serological evidence of infection in animals other than man.(1968-09-01) Carey, D E; Reuben, R; Myers, R M; George, S
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