Podcasts about dermacentor

Recorded live on February 23rd, 2023   Two people making music on the fly… Bugs In The Basement creates improvised musical journeys from an array of vintage and handmade instruments to modern technologies. Recorded live from our basement studio in the Pacific Northwest, each week we experiment in the process of making exploratory music and soundscapes. Unmixed, unedited and unapologetic. www.bugsinthebasement.com

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Board Certified in Family Medicine, Dr. Kelley was among the first physicians to become Board Certified in Integrative Medicine. She has studied the causes, effects, and treatments of Lyme Disease extensively, and lectures nationally on this and other topics.  Dr. Kelley graduated from The Ohio State University College of Medicine and completed her residency in Family Medicine at St. Joseph Hospital in Chicago.  She is a ten-year member of the Institute of Functional Medicine (IFM), a Director on the board of The International Lyme and Associated Disease Society (ILADS), and is a Founding Member of the Academy of Integrative Health and Medicine (AIHM).  Dr. Kelley is on the faculty at the Feinberg School of Medicine at Northwestern University.   Prior to founding Case Integrative Health, Dr. Kelley practiced medicine at WholeHealth Chicago, Michigan Avenue Immediate Care, and St. Joseph Hospital. In the United States, some ticks carry pathogens that can cause human disease, including: Anaplasmosis is transmitted to humans by tick bites primarily from the blacklegged tick (Ixodes scapularis) in the northeastern and upper midwestern U.S. and the western blacklegged tick (Ixodes pacificus) along the Pacific coast. Babesiosis is caused by microscopic parasites that infect red blood cells. Most human cases of babesiosis in the U.S. are caused by Babesia microti. Babesia microti is transmitted by the blacklegged tick (Ixodes scapularis) and is found primarily in the northeast and upper midwest. Borrelia mayonii infection has recently been described as a cause of illness in the upper midwestern United States. It has been found in blacklegged ticks (Ixodes scapularis) in Minnesota and Wisconsin. Borrelia mayonii is a new species and is the only species besides B. burgdorferi known to cause Lyme disease in North America. Borrelia miyamotoi infection has recently been described as a cause of illness in the U.S. It is transmitted by the blacklegged tick (Ixodes scapularis) and has a range similar to that of Lyme disease. Bourbon virus infection has been identified in a limited number patients in the Midwest and southern United States. At this time, we do not know if the virus might be found in other areas of the United States. Colorado tick fever is caused by a virus transmitted by the Rocky Mountain wood tick (Dermacentor andersoni). It occurs in the the Rocky Mountain states at elevations of 4,000 to 10,500 feet. Ehrlichiosis is transmitted to humans by the lone star tick (Ambylomma americanum), found primarily in the southcentral and eastern U.S. Heartland virus cases have been identified in the Midwestern and southern United States. Studies suggest that Lone Star ticks can transmit the virus. It is unknown if the virus may be found in other areas of the U.S. Lyme disease is transmitted by the blacklegged tick (Ixodes scapularis) in the northeastern U.S. and upper midwestern U.S. and the western blacklegged tick (Ixodes pacificus) along the Pacific coast. Powassan disease is transmitted by the blacklegged tick (Ixodes scapularis) and the groundhog tick (Ixodes cookei). Cases have been reported primarily from northeastern states and the Great Lakes region. Rickettsia parkeri rickettsiosis is transmitted to humans by the Gulf Coast tick (Amblyomma maculatum). Rocky Mountain spotted fever (RMSF) is transmitted by the American dog tick (Dermacentor variabilis), Rocky Mountain wood tick (Dermacentor andersoni), and the brown dog tick (Rhipicephalus sangunineus) in the U.S. The brown dog tick and other tick species are associated with RMSF in Central and South America. STARI (Southern tick-associated rash illness) is transmitted via bites from the lone star tick (Ambylomma americanum), found in the southeastern and eastern U.S. Tickborne relapsing fever (TBRF) is transmitted to humans through the bite of infected soft ticks. TBRF has been reported in 15 states: Arizona, California, Colorado, Idaho, Kansas, Montana, Nevada, New Mexico, Ohio, Oklahoma, Oregon, Texas, Utah, Washington, and Wyoming and is associated with sleeping in rustic cabins and vacation homes. Tularemia is transmitted to humans by the dog tick (Dermacentor variabilis), the wood tick (Dermacentor andersoni), and the lone star tick (Amblyomma americanum). Tularemia occurs throughout the U.S. 364D rickettsiosis (Rickettsia phillipi, proposed) is transmitted to humans by the Pacific Coast tick (Dermacentor occidentalis ticks). This is a new disease that has been found in California. (credits to the CDC for these links) https://www.caseintegrativehealth.com/

Noter og links på SIVP.dk/133 René Bødker er seniorforsker ved Institut for Veterinær- og Husdyrvidenskab (IVH) på Københavns Universitet, hvor han arbejder med national overvågning og kontrol af vektorer og vektorbårne sygdomme. Mange vektorer trives bedst i varmere klima, men sommetider dukker de i Danmark og de kan have alvorlige sygdomme med sig.  I denne podcast snakker vi om nogle af de faktorer, der har betydning for spredningen af vektorer og vektorbårne sygdomme, og hvordan vi bedst muligt forebygger denne spredning. René fortæller bl.a. om engflåten (Dermacentor reticulatus) og jagtflåten (Hyalomma marginatum). Begge flåtarter dukker op i Danmark fra tid til anden og kan give anledning til alvorlige sygdomme hos både mennesker og

Noter og links på: SIVP.dk/121 Kirsten Hobolt er smådyrsdyrlæge på Maribo Dyrehospital, hvor hun hovedsageligt arbejder med medicinske patienter, kardiologi samt reproduktion. I dag fortæller Kirsten om diagnosticering, behandling og forebyggelse af babesiose. Babesiose forårsages af protozoer tilhørende Babesia-slægten, som overføres til hunde via engflåten, Dermacentor reticulatus. Babesia-sporozoitterne overføres ved flåtbid og trænger ind i erythrocytterne, hvor de forårsager hæmolyse. Forekomsten af Babesia er størst i varmere områder, men i takt med, at klimaet forandrer sig, spredes mellemværterne, dvs. flåterne, til andre geografiske områder. Dermacentor er også fundet i Danmark, men indtil videre har der kun har været få tilfælde af babesiose.

Bravecto is one of the newest kids on the block when it comes to the control of fleas and ticks. While it works very well, some people question this drug’s safety and others struggle with the tablet’s price. So can you split Bravecto tablets, and when should you be worried about an overdose or Bravecto side effects?Bravecto is isoxazaline parasite control product that is a tablet which: Kills fleas for 12 weeks, kills most ticks for 12 weeks (Ixodes ricinus, Dermacentor reticulatus and D. variabilis), but only kills the lone star tick for 8 weeksThe Bravecto data sheet clearly states: "The chewable tablets should not be broken or divided". This is because the active ingredient can not be guaranteed to be evenly mixed throughout tablet and so half a tablet may contain less or more than half the total tablet dose.It is uncertain how significant the difference could be but it could mean that a dog is either under-dosed or overdosed. This will depend on the size of your dog compared to the supposed dose givenThat being said, the dose rate for dogs within 1 dosing band corresponds to a dose of 25 – 56 mg fluralaner/kg body weight which is clearly quite a large dose rate to work with. You may be happy with this and so choose to split the tablet, but it is not something that I can specifically recommend.Overdose testing has been carried out for Bravecto and:  "No adverse reactions were observed following oral administration to puppies aged 8 – 9 weeks and weighing 2.0 – 3.6 kg treated with overdoses of up to 5 times the maximum recommended dose"As with any drug there are potential side-effects which include: diarrhea, vomiting, drooling and inappetence, and in rare cases muscle tremors, wobbliness and even seizures in dogs taking these drugs. It might be that your dog is at a higher risk of side-effects - for example, I would be cautious about recommending its use in epileptic animals or those suffering from other types of seizuresHead over to the full show notesDownload my FREE guide - 5 Steps to Keeping Your Pet as Healthy as Possible

To view the show notes and listen to this episode, please visit www.MountainNaturePodcast.com/ep077

Recorded on September 20th, 2018   Two people making music on the fly… Bugs In The Basement creates improvised musical journeys from an array of vintage and handmade instruments to modern technologies. Recorded live from our basement studio in the Pacific Northwest, each week we experiment in the process of making exploratory music and soundscapes. Unmixed, unedited and unapologetic. www.bugsinthebasement.com

Kleinsäuger sind essentiell für die Entwicklung und die Verbreitung von subadulten Schildzecken. Den Kleinsäugern kommt so eine wichtige Rolle als potentielle Reservoirwirte für Zecken-übertragene Pathogene zu. Die Ziele dieser Studie waren unterschiedliche Zecken-übertragene Pathogene in wildlebenden Kleinsäugern nachzuweisen und die Reservoirfunktion der jeweiligen Kleinsäugerarten, im Zusammenhang mit unterschiedlich strukturierten Habitaten, zu evaluieren. Zwischen 2012 und 2013 wurden Kleinsäuger an drei unterschiedlich strukturierten Standorten gefangen: (1) an einem Stadtpark in Regensburg, (2) an einem silvatischen Standort in Tussenhausen im Unterallgäu und (3) an einem renaturierten Standort, der in der Nähe von Leipzig in Sachsen liegt. Zusätzlich wurden Zecken im Jahr 2013 am Waldstandort geflaggt. DNA wurde aus Blut-, Milz- und Gonaden-Proben der Mäuse und aus Mäuseneonaten extrahiert. Auf den Mäusen befindliche Zecken wurden abgesammelt. Aus diesen und den wirtssuchenden Zecken wurde ebenfalls DNA extrahiert. Zusätzlich wurden bereits vorhandene DNA-Proben aus wirtssuchenden Zecken aus den Jahren 2009-2013 bzw. 2011-2012 vom urbanen bzw. vom silvatischen Standort untersucht. Die Proben wurden mittels konventioneller oder Real-Time PCR auf Anaplasma phagocytophilum, Candidatus Neoehrlichia mikurensis (CNM) und Babesia microti untersucht. Insgesamt wurden 631 Kleinsäuger zehn verschiedener Arten gefangen (4 Apodemus agrarius, 7 Microtus arvalis, 1 M. agrestis, 396 Myodes glareolus, 2 Mustela nivalis, 5 Sorex coronatus, 1 Sorex araneus, 1 Talpa europaea, 36 Ap. sylvaticus, 178 Ap. flavicollis). Davon wurden insgesamt 36 Mäuse im Stadtpark, 243 am silvatischen und 352 am renaturierten Standort, wo die größte Artenvielfalt vorherrschte (n=8), gefangen. Insgesamt wurden 3.391 Zecken drei verschiedener Arten (8 Ixodes trianguliceps, 3.250 Ixodes ricinus, 133 Dermacentor reticulatus) abgesammelt. CNM wurde in insgesamt 28,6 % der Kleinsäuger nachgewiesen. Dabei waren 31,6 % My. glareolus, 28,1 % Ap. flavicollis, 57,1 % M. arvalis und 2,7% Ap. sylvaticus positiv. Die Prävalenzen unterschieden sich signifikant beim Vergleich der jeweiligen Standorte, wobei die Infektionsrate am renaturierten Standort am höchsten war (χ²: 13,4; p: 0,0004). Insgesamt waren 3,8 % der gesogenen und 2,2 % der wirtssuchenden Zecken positiv. In den untersuchten Kleinsäugerföten bzw. -Neonaten, die von positiven Muttertieren stammten, war die Prävalenz für CNM 31,8 %. Insgesamt 60,0 % der positiven Muttertiere hatten wenigstens einen positiven Foetus oder Neonaten. Anaplasma phagocytophilum wurde zu einem geringen Prozentsatz in Nagern festgestellt (0,0-5,6 %), wobei es keinen signifikanten Unterschied zwischen den Standorten, Jahren und Kleinsäugerarten gab. Jedoch waren gesogene Nymphen (I. ricinus) signifikant häufiger befallen als gesogene Larven (χ²: 25,1; p:

During the last years, a spreading of the endemic hard tick species Dermacentor reticu-latus and the transmitted canine babesiosis (respectively through the causative agent Babesia canis) was reported for Germany. To answer the question of the probability of further spreading, more detailed information on the epidemiological situation, the eco-logical niche of the tick and studies on the local prevalence of B. canis in D. reticulatus are required. During the last years, the use of geographical information systems (GIS) became common to process questions of species ecology. In the presented study, Bavarian habitats of D. reticulatus were searched for and charac-terized by analog and digital data sources, in order to gain further information on the tick’s epidemiological situation and also on its ecological niche. The possibility to create a reasonable digital risk map was evaluated. This map was meant to describe a potential distribution of D. reticulatus in Bavaria, by using the results of the digital spatial analysis. Collected D. reticulatus were screened for B. canis by molecular biological methods. The tick collection was carried out at 61 sampling sites during the biphasic activity pe-riod of D. reticulatus in the sampling years 2010 to 2013. Ticks were collected by the flagging method. Additionally, Bavarian veterinarians, pet owners and hunters were asked to report findings of D. reticulatus or to send in collected ticks. At all sampling sites climate data and information on ecosystem and vegetation were recorded. Digital spatial analysis and creation of the digital risk map were conducted with ArcMap GIS-tool. A conventional PCR targeting the 18S rRNA gene was carried out to detect B. ca-nis. Positive PCR-products were sequenced. A total of 4085 ticks were collected: 3746 (91.7%) I. ricinus (2095 adult, 482 larva, und 1169 nymphs) and 339 (8.3%) D. reticulatus (all adult; 214 female, 125 male). Another five adult D. reticulatus (collected from dogs) were sent in. Three habitats were positively evaluated for D. reticulatus: two forest areas (in the east of Regensburg and in the north-east of Munich) and the Isar floodplains between Munich and Freising. The site at the Isar floodplains is the first evidence of an endemic habitat in Bavaria in which D. reticulatus could be collected from the vegetation during several activity periods. The ecosystems of the positively evaluated sites differ, but they are all characterized by the presence of mixed forests – consisting of typical plant type associations – and a large amount of small surface waters. The endemic site is a river-related mixed forest, a floodplain site, showing signs of anthropogenic influence. The soil of the positively evaluated sites shows areas with extreme humid character. In the endemic area, soil consists mainly of clay and gley with a high water retention capacity. Availability of potential game animal hosts is high in all habitats. A population of red deer, which oc-curs seldom in Bavaria, inhabits the endemic D. reticulatus habitat. The digital spatial analysis revealed mean yearly temperatures of 8.5°C for the endemic habitat. This value is lower than the formerly presumed minimum yearly mean temperature of 9.0°C for D. reticulatus in Germany. A digital risk map could be created by using the results of the digital spatial analysis. The created risk map shows 15 forest sites all over Bavaria, which provide a similar combination of environmental variables than the endemic site. Six of these forest areas were evaluated during the field survey, revealing D. reticulatus in two areas. Therefore a positive prognostic value should be assumed for the created risk map. The overall presence of B. canis in the collected D. reticulatus was 0.3%. B. canis was only detected in ticks from the endemic site in Munich. This study showed that D. reticulatus is endemic in Bavaria. The climatic tolerance of D. reticulatus is wider than formerly assumed. A further spreading of the tick in Bavaria is likely due to the fact that further suitable habitats in Bavaria occur. Red deer should be considered as main transportation vector. The results of the risk map give a reasonable indication in which areas further field survey should be carried out with priority. A further digital based processing of the distribution of D. reticulatus is likely to produce valuable results. The prevalence of B. canis in the area of Munich is low compared to the results of previous studies. Moreover an increase of the prevalence during the next years should be considered. Veterinarians’ attention should be drawn to the risk of au-tochthonous canine babesiosis infections.

Background: Candidatus Neoehrlichia mikurensis (CNM) has been described in the hard tick Ixodes ricinus and rodents as well as in some severe cases of human disease. The aims of this study were to identify DNA of CNM in small mammals, the ticks parasitizing them and questing ticks in areas with sympatric existence of Ixodes ricinus and Dermacentor reticulatus in Germany. Methods: Blood, transudate and organ samples (spleen, kidney, liver, skin) of 91 small mammals and host-attached ticks from altogether 50 small mammals as well as questing I. ricinus ticks (n=782) were screened with a real-time PCR for DNA of CNM. Results: 52.7% of the small mammals were positive for CNM- DNA. The majority of the infected animals were yellow-necked mice (Apodemus flavicollis) and bank voles (Myodes glareolus). Small mammals with tick infestation were more often infected with CNM than small mammals without ticks. Compared with the prevalence of similar to 25% in the questing I. ricinus ticks, twice the prevalence in the rodents provides evidence for their role as reservoir hosts for CNM. Conclusion: The high prevalence of this pathogen in the investigated areas in both rodents and ticks points towards the need for more specific investigation on its role as a human pathogen.

Background: The aims of this study were to evaluate the host-tick-pathogen interface of Babesia spp. and Anaplasma phagocytophilum in restored areas in both questing and host-attached Ixodes ricinus and Dermacentor reticulatus and their small mammalian hosts. Methods: Questing ticks were collected from 5 sites within the city of Leipzig, Germany, in 2009. Small mammals were trapped at 3 of the 5 sites during 2010 and 2011. DNA extracts of questing and host-attached I. ricinus and D. reticulatus and of several tissue types of small mammals (the majority bank voles and yellow-necked mice), were investigated by PCR followed by sequencing for the occurrence of DNA of Babesia spp. and by real-time PCR for A. phagocytophilum. A selected number of samples positive for A. phagocytophilum were further investigated for variants of the partial 16S rRNA gene. Co-infection with Rickettsia spp. in the questing ticks was additionally investigated. Results: 4.1% of questing I. ricinus ticks, but no D. reticulatus, were positive for Babesia sp. and 8.7% of I. ricinus for A. phagocytophilum. Sequencing revealed B. microti, B. capreoli and Babesia spp. EU1 in Leipzig and sequence analysis of the partial 16S RNA gene of A. phagocytophilum revealed variants either rarely reported in human cases or associated with cervid hosts. The statistical analysis revealed significantly less ticks infected with A. phagocytophilum in a city park in Leipzig as compared to the other sampling sites. A. phagocytophilum-DNA was detected in 2 bank voles, DNA of B. microti in 1 striped field-mouse and of Babesia sp. EU1 in the skin tissue of a mole. Co-infections were detected. Conclusion: Our results show the involvement of small mammals in the natural endemic cycles of tick-borne pathogens. A more thorough understanding of the interactions of ticks, pathogens and hosts is the essential basis for effective preventive control measures.