نتایج جستجو برای: reservoir host
تعداد نتایج: 252173 فیلتر نتایج به سال:
Viruses that originate in bats may be the most notorious emerging zoonoses that spill over from wildlife into domestic animals and humans. Understanding how these infections filter through ecological systems to cause disease in humans is of profound importance to public health. Transmission of viruses from bats to humans requires a hierarchy of enabling conditions that connect the distribution ...
1. The presence of masked swine influenza virus has been demonstrated in lungworm larvae from earthworms dug on Midwestern farms. 2. Swine influenza virus infections were provoked in 2 of 3 swine obtained from an Iowa farm during an interepizootic period. 3. The evidence presented has been interpreted as indicating that the swine lungworm is the reservoir and intermediate host for swine influen...
Many parasites infect multiple sympatric host species, and there is a general assumption that parasite transmission between co-occurring host species is commonplace. Such between-species transmission could be key to parasite persistence within a disease reservoir and is consequently an emerging focus for disease control. However, while a growing body of theory indicates the potential importance...
Leishmaniasis is a neglected tropical disease, transmitted by species of phlebotomus vectors of the genus Lutzomyia and is responsible for over 1500 yearly cases in Ecuador. Vector collection studies in Ecuador suggest an association between the ecological diversity of an ecosystem, presence of reservoir host and the abundance of sand y species. Data collected in a Coastal community suggest tha...
The ability of HIV-1 to establish an extremely stable latent viral reservoir in the CD4 + memory T cell population prevents viral eradication with the currently available antiretroviral drugs. A viral reservoir consisting of only 10 5 latently HIV-1 infected T cells could take more than 60 years to dissipate, making natural eradication during the lifetime of a patient impossible [1]. To achieve...
Introduction: Zoonotic Cutaneous leishmaniasis(ZCL) is one of the most important parasitic diseases in Iran and common in rural districts of half of the 30 provinces of the country. In recent years, ZCL has become a serious and increasing public health problem in Yazd province. Following the epidemic of CL in Khatam county of Yazd province, this study was carried out to determine the animal re...
Bartonella bacilliformis is the etiologic agent of Carrión's disease or Oroya fever. B. bacilliformis infection represents an interesting model of human host specificity. The notable differences in clinical presentations of Carrión's disease suggest complex adaptations by the bacterium to the human host, with the overall objectives of persistence, maintenance of a reservoir state for vectorial ...
the relationship between female oviposition preference and offspring performance is a key area of study on the evolution of host specificity. this study investigates host prefer-ence of the polyphagous hover fly syrphus ribesii (diptera: syrphidae) and compares it with some components of its offspring`s performance. females and offspring were tested on six naturally used aphid hosts (blackberry...
Introduction When a pathogenic microorganism first infects its host there is usually a dramatic engagement with the innate and adaptive immune systems that may result in disease symptoms. If the microbe and the host survive this initial interaction, the adaptive host immune system usually clears the invading offender. However, some pathogenic bacteria are capable of maintaining infections in ma...
Pathogenic species of Leptospira cause leptospirosis, a bacterial zoonotic disease with a global distribution affecting over one million people annually. Reservoir hosts of leptospirosis, including rodents, dogs, and cattle, exhibit little to no signs of disease but shed large numbers of organisms in their urine. Transmission occurs when mucosal surfaces or abraded skin come into contact with i...
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