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PubMedDate not supplied

Arbovirus infections and viral haemorrhagic fevers in Uganda: a serological survey in Karamoja district, 1984.

Sera collected in May 1984 from 132 adult residents of Karamoja district, Uganda, were examined by haemagglutination inhibition tests for antibodies against selected arboviruses, namely Chikungunya and Semliki Forest alphaviruses (Togaviridae); dengue type 2, Wesselsbron, West Nile, yellow fever and Zika flaviviruses (Flaviviridae); Bunyamwera, Ilesha and Tahyna bunyaviruses (Bunyaviridae); and Sicilian sandfly fever phlebovirus (Bunyaviridae); and by immunofluorescence tests against certain haemorrhagic fever viruses, Lassa fever arenavirus (Arenaviridae), Ebola-Sudan, Ebola-Zaïre and Marburg filoviruses (Filoviridae), Crimean-Congo haemorrhagic fever nairovirus and Rift Valley fever phlebovirus (Bunyaviridae). Antibodies against Chikungunya virus were the most prevalent (47%), followed by flavivirus antibodies (16%), which were probably due mainly to West Nile virus. No evidence of yellow fever or dengue virus circulation was observed. A few individuals had antibodies against Crimean-Congo haemorrhagic fever, Lassa, Ebola and Marburg viruses, suggesting that these viruses all circulate in the area.

Adult↗
PubMedDate not supplied

[Study of combined foci of mosquito-transmitted arbovirus infections].

A total of 5227 serum specimens from humans, horses and swine collected in the seasons of 1968--1976 in 15 administrative areas of the Primorskiy Kray were examined with antigens of a number of mosquito-borne arboviruses: Japanese encephalitis (JE), West Nile (WN), Getah, and Sindbis. Both independent and combined circulation of these viruses in the region was established. Sindbis virus was found to be circulating separately most frequently, West Nile virus the least frequently. According to the results of the serological analysis, the conditions for combined circulation are most closely related for JE and Getah, and JE and WN viruses. The interpretation of the results of examinations of the sera reacting simultaneously with JE and WN virus is most difficult because of close antigenic relationship of these viruses. A set of methods for serological differentiation of bivalent sera to JE and WN viruses and the criteria for the assessment of the results are recommended.

Animals↗
PubMed2001

Human arbovirus infections worldwide.

Viral diseases transmitted by blood-feeding arthropods (arboviral diseases) are among the most important of the emerging infectious disease public health problems facing the world at the beginning of the third millennium. There are over 534 viruses listed in the arbovirus catalogue, approximately 134 of which have been shown to cause disease in humans. These are transmitted principally by mosquitoes and ticks. In the last two decades of the twentieth century, a few new arboviral diseases have been recognized. More important, however, is the dramatic resurgence and geographic spread of a number of old diseases that were once effectively controlled. Global demographic and societal changes, and modern transportation have provided the mechanisms for the viruses to break out of their natural ecology and become established in new geographic locations where susceptible arthropod vectors and hosts provide permissive conditions for them to cause major epidemics. West Nile virus is just the the latest example of this type of invasion by exotic viruses. This paper will provide an overview of the medically important arboviruses and discuss several in more detail as case studies to illustrate our tenuous position as we begin the twenty-first century.

Aedes↗
PubMed1981

Early diagnosis of viraemia in some experimental arbovirus infections in mice.

Viraemia was demonstrated by the indirect haemagglutination (IHA) test in newborn white mice infected with dengue type 1 and 2 and Japanese encephalitis viruses but not with Chikungunya virus. The IHA allowed the detection of viraemia in the flavivirus infections before the appearance of clinical symptoms of the disease and was strictly specific.

Animals↗