Evaluation of an enzyme-linked immunosorbent assay to detect specific antibodies in pigs infested with the tick Ornithodoros erraticus (Argasidae)

Canals, A.; Oleaga, Ana; Pérez, Rosa Cordovilla; Domínguez, José Pedro Castruita; Encinas, A Rodríguez; Sánchez-Vizcaíno, José Manuel

doi:10.1016/0304-4017(90)90069-n

Cited by 24 publications

(18 citation statements)

References 11 publications

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“…Preliminary studies recently performed in Sardinia and the Russian Federation have evaluated the presence of antibodies against Ornithodoros ticks in the sera of backyard pigs, using a previously described enzyme-linked immunosorbent assay (ELISA) technique (36,37). Very strong positive results were found in sera collected from backyard pigs in the southern regions of the Russian Federation, whereas no Sardinian samples returned positive results (L. Mur, personal communication).…”

Section: However In Other Affected European Territories Ornithodorosmentioning

confidence: 99%

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New insights into the role of ticks in African swine fever epidemiology

Sánchez-Vizcaı́no¹,

Mur²,

Bastos³

et al. 2015

Rev. Sci. Tech. OIE

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SummaryAfrican swine fever (ASF), one of the most important diseases of swine, is present in many African countries, as well as in eastern Europe, Russia and Sardinia. It is caused by a complex virus, ASF virus (ASFV), for which neither vaccine nor treatment is available. ASFV affects swine of all breeds and ages, and also replicates in soft ticks of the genus Ornithodoros, facilitating ASFV persistence and reocurrence of disease. Depending on the involvement of these ticks, and the presence or not of sylvatic asymptomatic animals, several epidemiological cycles have been identified. The disease persists in East and southern African countries in a sylvatic cycle between O. porcinus (of the O. moubata species complex) and common warthogs. In some countries a domestic pig-tick cycle exists, whereas in other regions, notably West Africa, the role of soft ticks has not been demonstrated, and ASFV is transmitted between domestic pigs in the absence of tick vectors. Even in several East and Central African countries which have the sylvatic or domestic cycle, the majority of outbreaks are not associated with ticks or wild suids. In Europe, O. erraticus was detected and identified as a crucial vector for ASF maintenance in outdoor pig production on the Iberian Peninsula. However, in most parts of Europe, there is a lack of information about the distribution and role of Ornithodoros ticks in ASF persistence, particularly in eastern regions. This article reviews ASF epidemiology and its main characteristics, with a special focus on the distribution and role of soft ticks in ASF persistence in different settings. Information about tick detection, control measures and future directions for research is also included.

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Section: However In Other Affected European Territories Ornithodorosmentioning

confidence: 99%

“…An ELISA test based on the extract of salivary glands of O. erraticus was widely employed during the eradication period in Spain to detect pigs exposed to the bites of Ornithodoros ticks (30,36), and this is still in use in several areas of Europe. Further assays have been developed to improve the test' s specificity (37).…”

Section: Diagnosismentioning

confidence: 99%

New insights into the role of ticks in African swine fever epidemiology

Sánchez-Vizcaı́no¹,

Mur²,

Bastos³

et al. 2015

Rev. Sci. Tech. OIE

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“…Auf dem afrikanischen Kontinent werden hingegen selten Kontakte zwischen afrikanischen Wildschweinearten und Hausschweinen beobachtet (Jori and Bastos, 2009, Thomson, 1985, Wilkinson, 1986 (Boinas et al, 2004). Indirekt kann man das Vorhandensein dieser speziellen Lederzeckenart mittels eines Antikörper-ELISAs feststellen (Canals et al, 1990, Oleaga-Pérez et al, 1993 (Montgomery, 1921). Zunächst wurde als Ursprung der Infektion der Kontakt zu…”

Section: Epidemiologieunclassified

3.3 Afrikanische Schweinepest

Mayr¹

2007

Medizinische Mikrobiologie, Infektions- Und Seuchenlehre

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“…The most commonly used tick collection methods are based on manual collection from suitable habitats (Boinas, 1994), by vacuum (Butler et al 1985) or with CO 2 traps (Caiado et al 1990, Boinas 1994. Serological approaches depend on detection of antibodies to tick salivary gland extracts (Canals et al 1990). In certain circumstances, observations of subcutaneous haemorrhagic lesions in pigs may be an indicator for the presence of soft ticks (Encinas-Grandes et al, 1993).…”

Section: Tick Detection and Identification Methodsmentioning

confidence: 99%

Scientific Opinion on African Swine Fever

Bøtner¹,

Peña

Mannelli

et al. 2010

EFS2

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The risk that African Swine Fever virus (ASFV) remains endemic in the Trans Caucasian Countries (TCC) and the Russian Federation (RF) is moderate, while the risk of its spread in these regions is high. The resulting risk of introduction from these regions into the EU is moderate most likely through food waste. The risk of ASFV remaining endemic in wild boar and the consequent introduction into the EU was considered low in the TCC and moderate in the RF, mainly due to the higher population density in the RF and the connected wild boar populations to the EU from the RF. Within the EU, mainly domestic pigs in the free range (FR) and the limited biosecurity sector (LB) are likely to be exposed to ASFV via swill feeding, with low risk. Once infected, the risk of spread from the LB and FR sectors prior detection is high, mainly due to movement of pigs, people and vehicles and moderate from the High Biosecurity (HB) sector. The risk of endemicity in domestic pigs is considered negligible in HB and low in LB since the implementation of control measures are effective. The risk of endemicity in the FR sector is moderate due to wild boar contact, noncompliance with animal movement ban and difficult access to all individual pigs. The risk of ASFV becoming endemic in the wild boar population in the EU is moderate, in particular in areas with connected wild boar populations. Because of their long life, ticks of the O. erraticus complex can be important in maintaining local foci of ASFV, where pigs are kept under traditional systems. Ticks do not, play an active role in the geographical spread of the virus. Wild boar have never been found infested because they do not rest inside burrows potentially infested by ticks.

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Evaluation of an enzyme-linked immunosorbent assay to detect specific antibodies in pigs infested with the tick Ornithodoros erraticus (Argasidae)

Cited by 24 publications

References 11 publications

New insights into the role of ticks in African swine fever epidemiology

New insights into the role of ticks in African swine fever epidemiology

3.3 Afrikanische Schweinepest

Scientific Opinion on African Swine Fever

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