Omsk Hemorrhagic Fever, Ecology of the Agent and Epizootiology

Artsob, H; Kharitonova, N. N.; Leonov, Yu. A.

doi:10.2307/3282350

Cited by 2 publications

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“…Water rats were also the main host, with Ixodes apronophorus as the vector. [I. apronophoros also plays an important role in maintaining Omsk hemorrhagic fever virus in the same sites (79)]. People became infected by the contamination of running water during the summer by water rats.…”

Section: Epidemiology Of Tularemiamentioning

confidence: 99%

Ecology ofFrancisella tularensis

Telford

Goethert

2020

Annu. Rev. Entomol.

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Tularemia is a Holarctic zoonosis caused by the gamma proteobacterium Francisella tularensis and is considered to be a vector-borne disease. In many regions, human risk is associated with the bites of flies, mosquitoes, or ticks. But the biology of the agent is such that risk may be fomite related, and large outbreaks can occur due to inhalation or ingestion of contaminated materials. Such well-documented human risk factors suggest a role for these risk factors in the enzootic cycle as well. Many arthropods support the growth or survival of the agent, but whether arthropods (ticks in particular) are obligately required for the perpetuation of F. tularensis remains to be demonstrated. As with most zoonoses, our knowledge of the ecology of F. tularensis has been driven with the objective of understanding human risk. In this review, we focus on the role of the arthropod in maintaining F. tularensis, particularly with respect to long-term enzootic persistence.

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Section: Epidemiology Of Tularemiamentioning

confidence: 99%

Ecology ofFrancisella tularensis

Telford

Goethert

2020

Annu. Rev. Entomol.

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“…Generally, information is scarce on the impact of a persistent OHFV infection on its natural hosts. Laboratory tests detect a fatal neuro-infection (Shestopalova et al, 1972) in the susceptible wild muskrat (Ondathra zibethicus) after an extraneural or intracerebral injection (Kharitonova and Leonov, 1986). Other wild vertebrates show mostly asymptomatic diseases with viremia (Kharitonova and Leonov, 1986;Růžek et al, 2010).…”

Section: Pathogenesis and Disease Manifestationsmentioning

confidence: 99%

“…Laboratory tests detect a fatal neuro-infection (Shestopalova et al, 1972) in the susceptible wild muskrat (Ondathra zibethicus) after an extraneural or intracerebral injection (Kharitonova and Leonov, 1986). Other wild vertebrates show mostly asymptomatic diseases with viremia (Kharitonova and Leonov, 1986;Růžek et al, 2010). Some infected animals showed poor mobility, weakness, and hyperpnoea.…”

Section: Pathogenesis and Disease Manifestationsmentioning

confidence: 99%

“…There has been no evidence of person-toperson transmission so far. High-grade fever, headache, cough, myalgia, moderate to severe hemorrhagic manifestations, pneumonia, nephrosis, and meningitis are all symptoms of OHF, with a mortality rate ranging from 0.4 to 3% (Kharitonova and Leonov, 1986;Růžek et al, 2010;Zhang et al, 2019). Currently, no specific treatment or vaccine is available to treat or prevent OHF; however, symptoms can be treated to minimize disease manifestations (Orlinger et al, 2011).…”

Section: Pathogenesis and Disease Manifestationsmentioning

confidence: 99%

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Geographical distribution and pathogenesis of ticks and tick-borne viral diseases

Shah

Wang

et al. 2023

Front. Microbiol.

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Ticks are obligatory hematophagous arthropods that harbor and transmit infectious pathogens to humans and animals. Tick species belonging to Amblyomma, Ixodes, Dermacentor, and Hyalomma genera may transmit certain viruses such as Bourbon virus (BRBV), Dhori virus (DHOV), Powassan virus (POWV), Omsk hemorrhagic fever virus (OHFV), Colorado tick fever virus (CTFV), Crimean-Congo hemorrhagic fever virus (CCHFV), Heartland virus (HRTV), Kyasanur forest disease virus (KFDV), etc. that affect humans and certain wildlife. The tick vectors may become infected through feeding on viraemic hosts before transmitting the pathogen to humans and animals. Therefore, it is vital to understand the eco-epidemiology of tick-borne viruses and their pathogenesis to optimize preventive measures. Thus this review summarizes knowledge on some medically important ticks and tick-borne viruses, including BRBV, POWV, OHFV, CTFV, CCHFV, HRTV, and KFDV. Further, we discuss these viruses’ epidemiology, pathogenesis, and disease manifestations during infection.

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Omsk Hemorrhagic Fever, Ecology of the Agent and Epizootiology

Cited by 2 publications

References 0 publications

Ecology ofFrancisella tularensis

Ecology ofFrancisella tularensis

Geographical distribution and pathogenesis of ticks and tick-borne viral diseases

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