The Occurrence and Spread of Ephemeral Fever of Cattle in Queensland

Newton, L. G.; Wheatley, Claudia

doi:10.1111/j.1751-0813.1970.tb06657.x

Cited by 35 publications

(42 citation statements)

References 3 publications

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“…The spread of other diseases transmitted by biting insects, e.g. potato leaf roll, sugar beet yellow, myxomatosis and bovine ephemeral fever, has been shown to be associated with dispersal of infected insects on the wind (Johnson, 1969; Ratcliffe, Myers, Fennessy & Calaby, 1952;Seddon, 1938;Murray, 1970;Newton & Wheatley, 1970). The following analyses of six examples of disease spread strongly suggest that AHS can be spread by windborne movement of the infected vector.…”

Section: Introductionmentioning

confidence: 97%

Possible spread of African horse sickness on the wind

Sellers

Pedgley

Tucker

1977

J. Hyg.

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SUMMARYAnalyses of outbreaks of African horse sickness showed that movement of infected Culicoides midges on the wind was most likely responsible for the spread of the disease over the sea from Morocco to Spain in 1966, from Turkey to Cyprus in 1960, and from Senegal to the Cape Verde Islands in 1943. The pattern of spread of the epidemic in the Middle East in 1960 could have been laid down by the infected midges carried on spells of south-east winds, and analyses of outbreaks in Algeria in 1965 and India in 1960 also suggested windborne spread of the disease. Each spread occurred when the presence of virus, host and vector coincided either with a spell of winds unusual for a particular time of year (Spain, Cyprus, Cape Verde Islands and Algeria) or with a series of disturbances usual at that time of the year (Middle East and India). Inferred flight endurance of the midge varied up to at least 20 h and flight range from 40 to 700 km. Flight occurred when temperatures were likely to have been in the range of 15–25 °C if it was at night or 20 to about 40 °C if it was by day.It is suggested that likely movements of midges on the wind can be estimated from synoptic weather charts, and should be taken into account when planning control of the disease in the face of an outbreak. Such control includes a ban on movement of horses, vaccination and spraying of insecticide.The risk of spread to countries outside the endemic areas should be assessed by reference to possible wind dispersal of infected midges.

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Section: Introductionmentioning

confidence: 97%

Possible spread of African horse sickness on the wind

Sellers

Pedgley

Tucker

1977

J. Hyg.

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“…In addition to the three major epizootics of Ephemeral fever described between 1936 and 1968, a number of sporadic outbreaks, mainly in Queensland and the Northern Territory, have been recorded (Newton and Wheatley, 1970).…”

Section: Epizootiologymentioning

confidence: 99%

“…Newton and Wheatley (1970) have reviewed the records of sporadic clinical cases of Ephemeral fever in Queensland between 1937. Snowdon (1971 has provided serological evidence of the persistence of Ephemeral fever virus in cattle between major epizootics and has suggested that during these periods the Ephemeral fever virus may be of lower pathogenicity and immunogenicity for cattle than the viruses causing major outbreaks or epizootics.…”

Section: Epizootiologymentioning

confidence: 99%

A Review of Arthropod‐borne Virus Infections Affecting Man and Animals in Australia

1973

Aust J Exp Biol Med

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“…Epidemics of the disease occurred in 1936-37, 1955-56, 1967-68, 1970-71 and 1972-74 (St George et al 1977. The indirect evidence accumulated in Australia indicated that bovine ephemeral fever was spread by an insect vector (Seddon 1938;Mackerras et al 1940;Murray 1970;Newton and Wheatley 1970). However, direct evidence of insect involvement was lacking in spite of efforts applied to isolating viruses from potential vectors collected during the 1967-68, 1970-71 and 1972-74 outbreaks H.…”

Section: Introductionmentioning

confidence: 99%

Isolation of Arboviruses from Insects Collected at Beatrice Hill, Northern Territory of Australia, 1974?1976

Ha¹,

Al²,

Td³

et al. 1984

Aust. Jnl. Of Bio. Sci.

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Between October 1974 and May 1976, 57596 mosquitoes, 169957 Culicoides, 5923 Lasiohelea and 1043 phlebotomines were collected for virus isolation at Beatrice Hill (lat. 12�39'S.,long. 131�20'E.) in the Northern Territory of Australia. A total of 94 viruses belonging to 22 different serological groupings was isolated. The following species of insect yielded viruses which were identified and those viruses marked with an asterisk represent a new record of insect host:

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The Occurrence and Spread of Ephemeral Fever of Cattle in Queensland

Cited by 35 publications

References 3 publications

Possible spread of African horse sickness on the wind

Possible spread of African horse sickness on the wind

A Review of Arthropod‐borne Virus Infections Affecting Man and Animals in Australia

Isolation of Arboviruses from Insects Collected at Beatrice Hill, Northern Territory of Australia, 1974?1976

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