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In the Southern U.S., Young Blacklegged Ticks' Habitat is a Mystery

In the Southern U.S., Young Blacklegged Ticks' Habitat is a Mystery | ticks | Scoop.it
In the southern U.S., blacklegged tick larvae and nymphs can be found on hosts, but they don't otherwise show up in vegetation or—as a new study finds—in leaf litter or soil either. So where are they hiding?
Via Donna MacPherson Lugar
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Ticks are here to stay. But scientists are finding ways to outsmart themTrue Viral News | True Viral News

Ticks are here to stay. But scientists are finding ways to outsmart themTrue Viral News | True Viral News | ticks | Scoop.it
Thanks, Holly Gaff. Soon, anyone straining to tweeze off a mid-back tick can find answers to the obvious question: What if humankind just went after the little
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MicroRNA-275 and its target Vitellogenin-2 are crucial in ovary development and blood digestion of Haemaphysalis longicornis | Read by QxMD

MicroRNA-275 and its target Vitellogenin-2 are crucial in ovary development and blood digestion of Haemaphysalis longicornis | Read by QxMD | ticks | Scoop.it
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Antibacterial peptide defensin is involved in midgut immunity of the soft tick, Ornithodoros moubata | Read by QxMD

Antibacterial peptide defensin is involved in midgut immunity of the soft tick, Ornithodoros moubata | Read by QxMD | ticks | Scoop.it
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Evidence for active and passive components of sorption of atmospheric water vapour by larvae of the tick Dermacentor variabilis

Evidence for active and passive components of sorption of atmospheric water vapour by larvae of the tick Dermacentor variabilis | ticks | Scoop.it
Knulle, W.; Devine, T. L., 1972: Evidence for active and passive components of sorption of atmospheric water vapour by larvae of the tick Dermacentor variabilis
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Formamidine structure and detachment of the cattle tick Boophilus microplus

Formamidine structure and detachment of the cattle tick Boophilus microplus | ticks | Scoop.it
Stone, B. F.; Atkinson, P. W.; Knowles, C. O., 1974: Formamidine structure and detachment of the cattle tick Boophilus microplus
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10 Tips to Avoid Tick Bites

10 Tips to Avoid Tick Bites | ticks | Scoop.it
Your first line of defense against tick-borne diseases is avoiding ticks. Follow these 10 tips to avoid tick bites when you head outdoors.
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Blood-Borne Diseases -Transmission, Types, Diagnosis, Prevention

Blood-Borne Diseases -Transmission, Types, Diagnosis, Prevention | ticks | Scoop.it
Blood-borne pathogens are microbes such as viruses or bacteria that are carried in human blood. Proper risk management may help reduce blood-borne disease prevalence.
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Climate change triggers new diseases in Vietnam - News VietNamNet

Climate change triggers new diseases in Vietnam - News VietNamNet | ticks | Scoop.it
<em>VietNamNet Bridge </em>- Scientists have found connections between climate change and the appearance of new diseases, especially vector borne diseases, including dengue fever and malaria.
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The Surprising Link Between Fibromyalgia and Lyme Disease

The Surprising Link Between Fibromyalgia and Lyme Disease | ticks | Scoop.it
If you've been diagnosed with fibromyalgia, you know better than anyone the pain, frustration and anxiety associated with this difficult to define disease.
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Read The Hard Ticks of the World: (Acari: Ixodida: Ixodidae)

The Hard Ticks of the World: (Acari: Ixodida: Ixodidae) http://readbooksamillion.tech/?book=9402406530
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Pennsylvania first in US for Lyme disease - WFMZ 03-01-2017

Lyme disease is usually identified by the telltale "red bulls eye" rash, however, it can sometimes be tricky to diagnose, because its symptoms can mimi
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Different Populations of Blacklegged Tick Nymphs Exhibit Differences in Questing Behavior That Have Implications for Human Lyme Disease Risk

Different Populations of Blacklegged Tick Nymphs Exhibit Differences in Questing Behavior That Have Implications for Human Lyme Disease Risk | ticks | Scoop.it
Animal behavior can have profound effects on pathogen transmission and disease incidence. We studied the questing (= host-seeking) behavior of blacklegged tick (Ixodes scapularis) nymphs, which are the primary vectors of Lyme disease in the eastern United States. Lyme disease is common in northern but not in southern regions, and prior ecological studies have found that standard methods used to collect host-seeking nymphs in northern regions are unsuccessful in the south. This led us to hypothesize that there are behavior differences between northern and southern nymphs that alter how readily they are collected, and how likely they are to transmit the etiological agent of Lyme disease to humans. To examine this question, we compared the questing behavior of I. scapularis nymphs originating from one northern (Lyme disease endemic) and two southern (non-endemic) US regions at field sites in Wisconsin, Rhode Island, Tennessee, and Florida. Laboratory-raised uninfected nymphs were monitored in circular 0.2 m2 arenas containing wooden dowels (mimicking stems of understory vegetation) for 10 (2011) and 19 (2012) weeks. The probability of observing nymphs questing on these stems (2011), and on stems, on top of leaf litter, and on arena walls (2012) was much greater for northern than for southern origin ticks in both years and at all field sites (19.5 times greater in 2011; 3.6–11.6 times greater in 2012). Our findings suggest that southern origin I. scapularis nymphs rarely emerge from the leaf litter, and consequently are unlikely to contact passing humans. We propose that this difference in questing behavior accounts for observed geographic differences in the efficacy of the standard sampling techniques used to collect questing nymphs. These findings also support our hypothesis that very low Lyme disease incidence in southern states is, in part, a consequence of the type of host-seeking behavior exhibited by southern populations of the key Lyme disease vector.
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Effects of Wolbachia on ovarian apoptosis in Culex quinquefasciatus (Say, 1823) during the previtellogenic and vitellogenic periods

Effects of Wolbachia on ovarian apoptosis in Culex quinquefasciatus (Say, 1823) during the previtellogenic and vitellogenic periods | ticks | Scoop.it
Apoptosis is programmed cell death that ordinarily occurs in ovarian follicular cells in various organisms. In the best-studied holometabolous insect, Drosophila, this kind of cell death occurs in all three cell types found in the follicles, sometimes leading to follicular atresia and egg degeneration. On the other hand, egg development, quantity and viability in the mosquito Culex quinquefasciatus are disturbed by the infection with the endosymbiont Wolbachia. Considering that Wolbachia alters reproductive traits, we hypothesised that such infection would also alter the apoptosis in the ovarian cells of this mosquito. The goal of this study was to comparatively describe the occurrence of apoptosis in Wolbachia-infected and uninfected ovaries of Cx. quinquefasciatus during oogenesis and vitellogenesis. For this, we recorded under confocal microscopy the occurrence of apoptosis in all three cell types of the ovarian follicle. In the first five days of adult life we observed oogenesis and, after a blood meal, the initiation step of vitellogenesis. Apoptoses in follicular cells were found at all observation times during both oogenesis and vitellogenesis, and less commonly in nurse cells and the oocyte, as well as in atretic follicles. Our results suggested that apoptosis in follicular cells occurred in greater numbers in infected mosquitoes than in uninfected ones during the second and third days of adult life and at the initiation step of vitellogenesis. The presence of Wolbachia leads to an increase of apoptosis occurrence in the ovaries of Cx. quinquefasciatus. Future studies should investigate if this augmented apoptosis frequency is the cause of the reduction in the number of eggs laid by Wolbachia-infected females. Follicular atresia is first reported in the previtellogenic period of oogenesis. Our findings may have implications for the use of Wolbachia as a mosquito and pathogens control strategy.
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Getting bit? Black flies and ticks on the attack after rains in Minnesota

Getting bit? Black flies and ticks on the attack after rains in Minnesota | ticks | Scoop.it
As ticks spread, so do cases of Lyme disease.
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A brief history of the discovery of tick-borne encephalitis virus in the late 1930s (based on reminiscences of members of the expeditions, their colleagues, and relatives) | Read by QxMD

A brief history of the discovery of tick-borne encephalitis virus in the late 1930s (based on reminiscences of members of the expeditions, their colleagues, and relatives) | Read by QxMD | ticks | Scoop.it
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Functional annotation and analysis of the Ornithodoros moubata midgut genes differentially expressed after blood feeding. - PubMed - NCBI

Functional annotation and analysis of the Ornithodoros moubata midgut genes differentially expressed after blood feeding. - PubMed - NCBI | ticks | Scoop.it
Ticks Tick Borne Dis. 2017 May 13. pii: S1877-959X(16)30231-X. doi: 10.1016/j.ttbdis.2017.05.002. [Epub ahead of print]
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Fine structural analysis of palpal receptors in the tick Amblyomma americanum (L.)

Fine structural analysis of palpal receptors in the tick Amblyomma americanum (L.) | ticks | Scoop.it
Foelix, R. F.; Chu Wang, I. W., 1972: Fine structural analysis of palpal receptors in the tick Amblyomma americanum (L.)
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Do Ticks Bite in Winter?

Do Ticks Bite in Winter? | ticks | Scoop.it
On unseasonably warm winter days, people and pets like to go outdoors for some fresh air. Should you protect yourself from tick bites in winter?
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East and west separation of Rhipicephalus sanguineus mitochondrial lineages in the Mediterranean Basin

East and west separation of Rhipicephalus sanguineus mitochondrial lineages in the Mediterranean Basin | ticks | Scoop.it

Rhipicephalus sanguineus belongs to a complex of hard tick species with high veterinary-medical significance. Recently, new phylogenetic units have been discovered within R. sanguineus, which therefore needs taxonomic revision. The present study was initiated to provide new information on the phylogeography of relevant haplotypes from less studied regions of Europe and Africa. With this aim, molecular-phylogenetic analyses of two mitochondrial markers were performed on 50 ticks collected in Hungary, the Balkans, countries along the Mediterranean Sea, Kenya and Ivory Coast. In the “temperate lineage” of R. sanguineus, based on cytochrome c oxidase subunit 1 (cox1) and 16S rRNA genes, Rhipicephalus sp. I was only found in the eastern part of the Mediterranean Basin (with relatively homogenous haplotypes), whereas Rhipicephalus sp. II occurred in the middle-to-western part of this region (with phylogenetically dichotomous haplotypes). Ticks identified as R. leporis (based on morphology and cox1 gene) were found in Kenya and Ivory Coast. These clustered phylogenetically within R. sanguineus (s.l.) (“tropical lineage”). In the Mediterranean Basin two mitochondrial lineages of R. sanguineus, i.e. Rhipicephalus sp. I and Rhipicephalus sp. II exist, which show different geographical distribution. Therefore, data from this study confirm limited gene flow between Rhipicephalus sp. I and Rhipicephalus sp. II, but more evidence (analyses of nuclear markers, extensive morphological and biological comparison etc.) are necessary to infer if they belong to different species or not. The phylogenetic relationships of eastern and western African ticks, which align with R. leporis, need to be studied further within R. sanguineus (s.l.) (“tropical lineage”).
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Jane Marke, MD: Mental Illness or Lyme Disease? - 12-11-2016

Lyme and Psychiatric Symptoms. Lecture to American Psychiatric Association NY Branch, Lenox Hill Hospital, November 12, 2016 "Tick borne disease, Lyme, an
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Lyme disease is America’s secret silent plague - Personal Liberty®

Lyme disease is America’s secret silent plague - Personal Liberty® | ticks | Scoop.it
Lyme disease produces a host of symptoms including fever, chills, headache, fatigue, muscle and joint aches, swollen lymph nodes, facial palsy, swollen joints and rash which begin within 3 to 30 days after the tick bite. People may have Lyme disease and not test positive for it; others who do test positive did not suspect it or can’t recall being bitten by a tick.
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Antibiotic gel prevents borreliosis resulting from tick bites

Antibiotic gel prevents borreliosis resulting from tick bites | ticks | Scoop.it
An antibiotic gel based on azithromycin, an antibiotic with antibacterial properties, helps to prevent the onset of Lyme borreliosis following a tick bite.
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Download The Genus Rhipicephalus (Acari, Ixodidae): A Guide to the Brown Ticks of the World

The Genus Rhipicephalus (Acari, Ixodidae): A Guide to the Brown Ticks of the World http://readbooksamillion.tech/?book=052101977X
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Study Finds Lyme Disease in Ticks in Nine U.S. National Parks

Study Finds Lyme Disease in Ticks in Nine U.S. National Parks | ticks | Scoop.it
By Josh Lancette Lyme disease has been spreading across the United States over the past several decades, and a new study has confirmed that ticks carrying the disease are present in eastern nationa…
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