Publications by authors named "Tal Azagi"

Article Synopsis
  • Endosymbiosis occurs when a microbe lives within a host, playing a key role in the evolution of complex life forms but its transition processes are not well understood.
  • The study examines the genus Arsenophonus, revealing that strains shifting from horizontal to vertical transmission have larger genomes due to the acquisition of new genetic features and the loss of defense systems against viral attacks.
  • The research suggests that endosymbiosis leads to a mix of genome expansion and eventual reduction as the microbe adapts to its host, enabling rapid genetic innovation before settling into a more stable state.
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An infection with the tick-borne has been associated with a broad spectrum of clinical manifestations in humans, but patients are only seldomly reported. Understanding its disease etiology necessitates well-stablished infection models, improving to recognize and diagnose patients with infection and facilitating the development of effective control strategies. In this study, we used C3H/HeN mice as a model to establish infection, achieving a high infection prevalence (89-100 %).

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Background: The extent to which infections with -borne pathogens (TBPs), other than s. l. and tick-borne encephalitis virus (TBEV), cause disease in humans remains unclear.

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Article Synopsis
  • A systematic review and meta-analysis were conducted to determine the prevalence of the relapsing fever spirochaete Borrelia miyamotoi in Ixodes ticks and humans in the northern hemisphere, examining a total of 1,046 studies.
  • The highest prevalence of B. miyamotoi in ticks was found in Ixodes persulcatus (2.8%), while human seroprevalence was recorded at 4.4%, with higher rates in specific high-risk groups.
  • Individuals suspected of other tick-borne diseases had significantly higher positivity rates for B. miyamotoi compared to the general population, indicating a possible correlation with tick exposure in certain regions, particularly in Asia.
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Neoehrlichia mikurensis is widely prevalent in across Europe and has been associated with human disease. However, diagnostic modalities are limited, and much is still unknown about its biology. Here, we present the first complete Neoehrlichia mikurensis genomes directly derived from wildlife reservoir host tissues, using both long- and short-read sequencing technologies.

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Background: The impact of infections with tick-borne pathogens (TBPs) other than Borrelia burgdorferi (s.l.) and tick-borne encephalitis virus (TBEV) on public health in Europe remains unclear.

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Human babesiosis in Europe has been attributed to infection with and, to a lesser extent, with and which are all transmitted to humans through a bite of . These species circulate in the Netherlands, but autochthonous human babesiosis cases have not been reported so far. To gain more insight into the natural sources of these species, their presence in reservoir hosts and in was examined.

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In Europe, ticks transmit pathogens such as sensu lato and tick-borne encephalitis virus (TBEV). In addition, there is evidence for transmission to humans from of , , , , and . However, whether infection with these potential tick-borne pathogens results in human disease has not been fully demonstrated for all of these tick-borne microorganisms.

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Hematophagous arthropods are responsible for the transmission of a variety of pathogens that cause disease in humans and animals. Ticks of the Ixodes ricinus complex are vectors for some of the most frequently occurring human tick-borne diseases, particularly Lyme borreliosis and tick-borne encephalitis virus (TBEV). The search for vaccines against these diseases is ongoing.

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Lyme borreliosis (LB) and other Ixodes ricinus-borne diseases (TBDs) are diseases that emerge from interactions of humans and domestic animals with infected ticks in nature. Nature, environmental and health policies at (inter)national and local levels affect the risk, disease burden and costs of TBDs. Knowledge on ticks, their pathogens and the diseases they cause have been increasing, and resulted in the discovery of a diversity of control options, which often are not highly effective on their own.

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ticks (Acari: Ixodidae) are hosts for -like endosymbionts (FLE) and may serve as vectors of zoonotic disease agents. This study aimed to provide an initial characterization of the interaction between and FLE and to determine the prevalence of pathogenic in these ticks. , , , , and ticks, identified morphologically and molecularly, were collected from different hosts and locations representing the distribution of the genus in Israel, as well as from migratory birds.

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