Tickborne diseases are reported more frequently and the ranges of certain tick species are expanding, placing more people at risk for tickborne disease. Ehrlichiosis and Anaplasmosis. In the present work, a very specific population of dogs (Group 1) that In the United States, E. canis is considered endemic in the southeastern and southwestern states, though the

Illness caused by A. platys and other tick-borne parasites such as Babesia canis vogeli may be colloquially referred to as tick fever. Background & Epidemiology . Most cases occur in northern California but cases have been seen in several other states, including Connecticut, Illinois, Arkansas, Washington, Pennsylvania, Colorado, Minnesota, and Florida. anaplasmosis and ehrlichiosis is the realization that a given mammalian species can be infected simultaneously or sequentially by several Ehrlichia species. Withholding this treatment pending a confirmatory diagnosis is associated with a poorer prognosis. Antibodies against Frequency of TBDs reported in West Virginia from 20152020. Monocytic and granulocytic ehrlichiosis in dogs may either be subclinical or entail a course with There are many medications available that help prevent tick bites. Clinical Ehrlichiosis. Ehrlichia canis and E. chaffeensis infect monocytes, Anaplasma phagocytophilum and E. ewingii infect granulocytes, and A. platys infects platelets. Cases have been reported in each month of the year, although most cases are reported during AprilSeptember, coincident with peak levels of tick host-seeking activity (35,914). We used PCRs to test blood from a cross-section of dogs on St Kitts for Ehrlichia ( E .)

Both are transmitted to humans by ticks. Some are applied as a topical medication on the skin, while others are given as a chewable treat. As Ehrlichia is transmitted by a tick bite, we can try to prevent this disease by reducing exposure to ticks. Hosts can be human, pet, or wild animals.

This means if you think a dog has ehrlichiosis, you must call your private vet, DPIRD vet or the Emergency Animal Disease hotline on 1800 675 888. appear to harbor subclinical infections so it is important to learn the potential Anaplasma phagocytophilum is the most important representative and has been detected in blood samples from a wide range of wild and domestic animals. Your dog cant get ehrlichiosis from another infected animal and cant give it directly to you. It is fatal in less than 1% of cases. Abstract Canine ehrlichiosis and anaplasmosis are important tick-borne diseases with a worldwide distribution. A related group, Anaplasma causes anaplasmosis, a virtually identical disease. The SNAP 4Dx tests for the three most common tick-borne diseases: Lyme, anaplasmosis, and ehrlichiosis. Ehrlichia are a type of bacteria that infect and live within the white blood cells of their hosts. Tick-borne diseases, including Lyme Disease, Canine Ehrlichiosis, Rocky Mountain Spotted Fever, Canine Anaplasmosis, and several others affect both humans and dogs. Ehrlichia and Anaplasma are bacteria that cause diseases, known as ehrlichiosis and anaplasmosis, in humans and other animals. Ehrlichiosis (/ r l k i o s s /; also known as canine rickettsiosis, canine hemorrhagic fever, canine typhus, tracker dog disease, and tropical canine pancytopenia) is a tick-borne disease of dogs usually caused by the rickettsial agent Ehrlichia canis. Canine Anaplasmosis. Canine ehrlichiosis is an infection acquired from tick bites. Early diagnosis and treatment of this condition are critical in preventing it from reaching its more severe stages. When Dogs Get Sick: Ehrlichia Symptoms. In some endemic areas, seroprevalence in healthy dogs is as high as 70% to 90%. 2010, 40, 1121-40 Clinical Signs. Different types of Ehrlichia live in different types of white blood cells.

People with weakened immune systems are at a higher risk of more-serious and life-threatening complications. It also tests for heartworm disease. B. Ehrlichiosis and Anaplasmosis. Tetracycline (22 mg/kg given every 8 hours) or doxycycline (5 mg/kg every 12 hours), administered daily for 4 weeks, represent the treatment of choice for canine and feline anaplasmosis and Report a case, suspected case, and/or positive laboratory result to the local public health

Ehrlichia and Anaplasma are primarily transmitted through the bites of infected hard ticks, such as the lone star tick, the blacklegged tick, and the American dog tick. These dogs will often experience the symptoms we listed above, as well as significant anemia in many cases. Preventing Ehrlichiosis in Dogs. Treating anaplasmosis in dogs will typically involve 3-4 weeks of doxycycline. as human granulocytic anaplasmosis (HGA; formerly human granulocytic ehrlichiosis) in people, canine granulocytic anaplasmosis (previously canine granulocytic ehrlichiosis) in dogs, equine Canine ehrlichiosis and anaplasmosis are important tick-borne diseases with a worldwide distribution. Adult ticks feed during the winter on white-tailed deer. Most of the dogs studied for the prevalence of CVBD have previously received acaricidal and insecticidal treatments. In 2018, 74 cases of ehrlichiosis and anaplasmosis were reported in Indiana, for an incidence rate of 1.1 cases per 100,000 population. Epidemiology. spp. Medication Summary. Without prompt treatment, ehrlichiosis and anaplasmosis can have serious effects on an otherwise healthy adult or child. Also referred to as dog tick fever or dog fever, the deer tick carries this disease. March 31, 2008. Dogs with ehrlichiosis generally need treatment with the antibiotic doxycycline for at least four weeks, Anya says. Incubation Period . Avoid Long Grass. The larval and nymphal ticks are found throughout the summer and feed on small mammals such as mice, chipmunks, and voles. In general, anaplasmosis leads to milder disease than monocytic ehrlichiosis caused by Ehrlichia canis and appears to be largely a self-limiting infection in dogs. Little SE: Ehrlichiosis and anaplasmosis in dogs and cats. species that have been detected in the blood and tissues of clinically ill dogs in North America include . Little called anaplasmosis the new Ehrlichiosis is a tick-borne (transmitted by tick bites) disease caused by infectious bacteria from the Ehrlichia genus. Anaplasmosis is caused by a bacterium called Anaplasma phagocytophilum, typically transmitted by the bite of an infected black-legged 7-14 days. Anaplasmosis is a tickborne disease in dogs and cats that was formerly known as Ehrlichiosis and has two different forms. Doxycycline should be started promptly on suspicion of ehrlichiosis, anaplasmosis, or suspected tick-borne rickettsiae. Canine anaplasmosis is caused by one of two gram-negative, obligate, intracellular bacterial agents, Anaplasma phagocytophilum or Anaplasma platys. Ehrlichiosis is not contagious. Treat dogs and cats for ticks as recommended by a veterinarian. Ticks can be infected with bacteria, viruses, or parasites. Human illness caused by the pathogen Clinical Ehrlichiosis in dogs refers to the stage in which the immune system is suffering with the presence of the pathogen. Little S E (2010) Ehrlichiosis and The Avian and Animal Hospital has been caring for cherished pets in Pinellas County since 1987. Because ticks can carry more than one of these diseases, Anaplasma phagocytophilum is It is fatal in less than 1% of cases. Ehrlichiosis, anaplasmosis, and spotted fever rickettsiosis are nationally notifiable diseases in the United States. and Anaplasma spp. Tetracycline (22 mg/kg given every 8 hours) or doxycycline (5 mg/kg every 12 hours), administered daily for 4 weeks, represent the treatment of choice for canine and feline anaplasmosis and ehrlichiosis. In S. OVERVIEW. The treatment for canine anaplasmosis is the same as that for other closely related tick-borne infections, including ehrlichiosis and Lyme disease, the antibiotic doxycycline. How quickly do ehrlichiosis symptoms appear? In fact, anaplasmosis is now the second most commonly reported tickborne disease after Lyme disease. 7-10 days; Notes . They are spread from host to host by tick bites. The study found that the percentage of positive tests for ehrlichiosis was 1.3% in the South, 0.6% in the West, 0.4% in the Midwest and 0.3% in the Northeast. Anaplasma phagocytophilum, found primarily in granulocytes. The Lone Star tick found in south-central, southeastern and eastern coastal states is the primary carrier of bacteria causing ehrlichiosis. Mammalian reservoirs for A phagocytophilum include small mammals such as mice, chipmunks, and voles. Ehrlichia canis is the pathogen of animals. diagnostic test, if there is a positive e. canis and a. phagocytophilum reaction, the dog could have both infections, or anaplasma with a cross reaction with e. canis (and likely an Your dog cant get ehrlichiosis from another infected animal and cant give it directly to you. Ehrlichiosis is not contagious. Blacklegged ticks also spread the infection. The brown dog tick is the main carrier of the Ehrlichia organism in nature. Florida Health. Infected hosts can experience symptoms similar to other tick-borne diseases, from lethargy, fever, stiff joints and loss of appetite to diarrhea and vomiting. 7-10 days. Ehrlichiosis and anaplasmosis are tick-borne diseases caused by a group of gram-negative intracellular bacteria belonging to the family Anaplasmataceae, order Rickettsiales. Without prompt treatment, ehrlichiosis and anaplasmosis can have serious effects on an otherwise healthy adult or child. Can my dog survive ehrlichiosis? Ticks attach themselves to dogs (and people) by standing on the edge of blades of grass. Guideline for veterinary practitioners on canine ehrlichiosis and anaplasmosis in Europe Academia.edu uses cookies to personalize content, tailor ads and improve the user experience. For example, one anaplasmosis complication is meningitis. Conclusions. Ehrlichia canis, E. chaffeenis, E. ewingii, E. muris. Key Facts. With diagnosis and treatment, most people will recover from anaplasmosis with no long-term health issues. ruminants, cervids, field rodents ; white-tailed deer, dogs . They are spread from host to host by tick bites. A buffy coat may provide presumptive evidence of infection if examined to identify characteristic intraleukocytic morulae. HUMAN EHRLICHIOSIS AND ANAPLASMOSIS FACT SHEET (updated May 201 9) Agents: Ehrlichia chaffeensis (human monocytic ehrlichiosis), Anaplasma phagocytophilum (human dogs . Clinical features of ehrlichiosis and anaplasmosis are well known in dogs (366). Vet Clin North Am Small Anim Pract. View Maps. Canine anaplasmosis is a widespread disease. Anaplasma phagocytophilum infections in dogs as well as in humans have been detected in many countries of the Northern hemisphere. Veterinary J 187 (3), 292-296 PubMed. Ehrlichiosis and anaplasmosis are caused by different bacteria. Many infected dogs are treated for 2-4 weeks (the longer course more often if co-infected with Lyme disease).

Most common . Anaplasmosis (formerly called equine granulocytic ehrlichiosis) is an infectious, seasonal disease, seen chiefly in the United States. Lyme disease, ehrlichiosis, and anaplasmosis are known as tick-borne diseases because they are transmitted when ticks bite and feed. While there is always a risk of tick-borne disease in endemic areas, there are things you can do to minimize the risk. Dogs with ehrlichiosis generally need treatment with the antibiotic doxycycline for at least four weeks, Anya says. Canine ehrlichiosis and anaplasmosis are important tick-borne diseases with a worldwide distribution. A very specific population of dogs that had never been treated against ticks and mosquitoes was studied, and all dogs with anaplasmosis showed specific clinical signs--fever, anemia, splenitis. We do not often treat dogs for Ehrlichiosis without active clinical symptoms, as the prevalence here is high and the incidence of clinical illness is low. Infection with E. canis (ehrlichiosis) is a notifiable disease in Australia. Disease Name # of 2015 cases # of 2016 cases # of 2017 cases # of 2018 cases # of 2019 cases # of 2020 cases Anaplasmosis 02 3 2 Babesiosis 01 0 Ehrlichiosis 5 6 4 10 3 and Panola Mountain . We do not often treat dogs for Ehrlichiosis without active clinical symptoms, as the prevalence here is high and the incidence of clinical illness is low. Our blood parasites test also tests for Lyme disease, anaplasmosis and ehrlichiosis in your area on our monthly forecast maps. Table 3.

They have a round dark brown/blackish scutum.

Information has been continuously collected on these infections in Europe, and

At least three species of obligate intracellular bacteria are responsible for ehrlichiosis and anaplasmosis cases in the United States: Ehrlichia chaffeensis, found primarily in monocytes, and . How does one contract ehrlichiosis? In addition, ticks are the host of several debilitating diseases, including Lyme disease, Rocky Mountain spotted fever, anaplasmosis, ehrlichiosis, and babesiosis. The brown dog tick which is present across northern Australia is the main carrier of this disease, and transmission only occurs through infected ticks. Ehrlichiosis is a disease that develops in dogs after being bitten by an infected tick. A dog with meningitis will require hospitalization and intensive care, resulting in bills of as much as several thousands of dollars. Rickettsial bacteria can cause a number of illnesses in dogs including Rocky Mountain Spotted Fever, Ehrlichiosis and Canine Anaplasmosis. Anaplasmosis, aka dog fever or dog tick fever, is a tick-borne disease that infects a dogs bloodstream. Anaplasmosis, formerly known as human granulocytic ehrlichiosis (HGE), is spread through black-legged deer ticks infected with anaplasma phagocytophilia, the same species that predominantly carries the Lyme bacterium.

Introduction. Several species in the genus Ehrlichia can cause disease in humans. There are three phases of illness with Ehrlichiosis: acute, subclinical, and chronic. Ehrlichiosis and Anaplasmosis in Dogs BASIC INFORMATION Description Ehrlichiosis and anaplasmosis are systemic diseases caused by rickettsial bacteria that are transmitted by ticks. Infected dogs do not directly transmit the disease to other dogs. 4.1. #1. Dawson JE, Ewing SA: Susceptibility of dogs to infection with This phase occurs 1 to 3 weeks after the host is And although ticks are [] This guideline is intended to answer the most common questions on these diseases from a practical point of view. Canine ehrlichiosis and anaplasmosis are important tick-borne diseases with a worldwide distribution. Ehrlichia canis was first identified in 1935 in Algeria; dogs infested with ticks showed fever and anemia [ 1 ]. Ehrlichiosis results from the bite of a tick carrying one of the forms of Ehrlichia bacteria. 1. 2. An update on anaplasmosis in dogs. Dogs living in CVBD-endemic regions of the European part of Russia that are not treated against ticks and mosquitoes have a high probability of becoming infected. canis, Babesia ( B .) Anaplasmosis is a zoonosis disease and carries non-specific symptoms, such as fever, lethargy, anorexia, lameness, joint pains, vomiting, diarrhea, incoordination, convulsions, anemia, enlarged lymph nodes, pale mucous Anaplasmosis. Your vet will take blood samples for testing to confirm a diagnosis of ehrlichiosis. Ehrlichiosis and anaplasmosis are caused by rickettsial-like bacteria. Ehrlichia. Shower soon after being outdoors. 3 In high-risk areas, risk of exposure can be lowered dramatically with adequate tick control, which also decreases the risk for other tick-borne diseases, such as anaplasmosis, babesiosis, bartonellosis, ehrlichiosis, and Rocky Mountain spotted fever. The key difference between anaplasmosis and ehrlichiosis is that anaplasmosis is a tick-borne bacterial infection caused by Anaplasma phagocytophilum while ehrlichiosis is a tick-borne bacterial infection caused by Ehrlichia chaffeensis.. Tick-borne pathogens can be passed to humans through the bite of infected ticks. The only way for people, dogs, or other animals to get ehrlichiosis is "Ehrlichiosis is a disease that develops in dogs after being bitten by an infected tick." The brown dog tick is the main carrier of the Ehrlichia organism in nature. Other tick species, have also been shown to transmit the disease in dogs and may carry other subspecies of Ehrlichia. SFG rickettsiosis, ehrlichiosis, and anaplasmosis are nationally notifiable in the United States. These days, there are many types of tick prevention including tasty chewable treats. Both types are likely spread by ticks and can occur worldwide. Check for ticks daily, especially under the arms, in and around the ears, inside the belly button, behind the knees, between the legs, around the waist, and on the hairline and scalp. and Hepatozoon ( H .) Watch as one pet owner tells her story about how heartworm disease affected her family. The more common, found throughout a larger area of We care for dogs, cats, birds, rabbits, ferrets, reptiles, and other exotic pets. Our blood parasites test also tests for Lyme Disease and Anaplasmosis, two other tickborne infections. How to Prevent Ehrlichiosis in Dogs and Cats Ehrlichiosis is a tick-borne illness caused by bacteria in the Ehrlichia group. The treatment for canine anaplasmosis is the same as that for other closely related tick-borne infections, including ehrlichiosis and The Lyme vaccine for dogs isn't 100 percent effective. There are many species of Ehrlichia, but the two most common Ehrlichiosis is a disease spread to dogs by ticks. Dr. Lauren Jones breaks down the most common tick-borne diseases in dogs and ways to prevent and treat these diseases. Dogs infected with Anaplasma platys generally show minimal to no signs of infection, although the organism is present in the platelets and causes periodic losses of platelets. Infection with other In the majority of cases, symptoms improve rapidly. Dogs experiencing significant bleeding or anemia with ehrlichiosis may require a blood transfusion in addition to antibiotics. Reporting Information Class B. Ehrlichiosis (a tick-borne disease) Rocky Mountain spotted fever (a tick-borne disease) For the treatment of granulocytic anaplasmosis in dogs, doxycycline is given 5 mg/kg orally every 12 hours for 14 days. When the clinical response in canine ehrlichiosis or anaplasmosis is not rapid, or when clinical signs persist after treatment with doxycycline, the dog must be re-examined for other infectious diseases or diseases with similar clinical signs (neoplasia or immune-mediated diseases) [ 6, 142, 146 ].

spp., Anaplasma ( A .) It is a Gram-negative, rod-shaped bacterium which has been isolated from freshwater, freshwater fish, shellfish, cattle, goats, swine, cats, dogs, monkeys, vultures, snakes, toads and humans. Ehrlichiosis Treatment for Dogs. and . Ehrlichiosis is a rickettsial disease caused by infection with Ehrlichia canis, Ehrlichia chaffeensis, Ehrlichia ewingii, or a combination of these and other tick-borne pathogens. Dogs and cats are increasingly at risk for diseases caused by mosquitoes and ticks. Different types of Ehrlichia live in different types of white blood cells. Prognosis For Dogs With Anaplasmosis. While anaplasmosis doesnt get the same attention as other tick-borne diseases such as Lyme and ehrlichiosis, it remains a significant disease of dogs and is being diagnosed with increased frequency across the United States.

Many types of ticks, Lone star ticks, deer ticks, and dog ticks can carry ehrlichia bacterium. These E. canis is 1 As an example, both dogs and Human However, Bailey notes that as a general rule, a dog that contracts the disease after

The dog with mono-infection of ehrlichiosis showed no clinical signs and hematological changes. Also known as Ehrlichia chaffeensis, Ehrlichia ewingii, Anaplasma phagocytophilum; formerly known as human monocytic ehrlichiosis (HME), human granulocytic anaplasmosis (HGA), human granulocytic ehrlichiosis (HGE), and Ehrlichia phagocytophilum.. Ehrlichiosis and anaplasmosis are all transmitted from mammalian reservoirs to humans by hard ticks. Canine anaplasmosis and ehrlichiosis are tick-borne diseases with a worldwide distribution and are caused by obligate intracellular bacteria of the genera Anaplasma and Ehrlichia, respectively. Disease occurs Ehrlichiosis and Anaplasmosis. Ehrlichiosis is a disease that develops in dogs after being bitten by an infected tick. Ehrlichiosis in dogs. Dogs experiencing significant bleeding or anemia with ehrlichiosis may require a blood transfusion in addition to antibiotics. Early signs and symptoms of both ehrlichiosis and anaplasmosis usually include: Fever or chills; Severe headache; Muscle aches; Nausea, vomiting, diarrhea, loss of appetite; The Avian and Animal Hospital provides veterinary services to Largo, Clearwater, Pinellas Park, Seminole, Bellair Bluffs, St. Petersburg, and all of west central Florida.

Human ehrlichiosis and anaplasmosis are acute febrile tick-borne diseases caused by various members from the genera Ehrlichia and Anaplasma (Anaplasmataceae). People who do not seek treatment early, older adults, and those with weakened immune systems may not recover as easily. Ehrlichiosis is a disease that effects dogs and is caused by a tick-borne bacteria called Ehrlichia canis.

In general, anaplasmosis leads to milder disease than monocytic ehrlichiosis caused by Ehrlichia canis and appears to be largely a self-limiting infection in dogs. Ehrlichioses and anaplasmoses are infections caused by bacterial organisms of the genera Ehrlichia and Anaplasma that typically target certain host blood cells. Canine Ehrlichiosis Information for Dog Owners. In the time since canine ehrlichiosis due to Ehrlichia canis was first described in 1935 and first recognized in the United States in 1962, many key advances have been made in our If ehrlichiosis or anaplasmosis is suspected, PCR of a whole blood specimen provides the best diagnostic test. Ehrlichia chaffeensis causes human monocytic ehrlichiosis (HME) and is transmitted to humans by the lone star tick, Amblyomma americanum, while A. phagocytophilum causes human granulocytic anaplasmosis (HGA) and is transmitted by the black-legged (deer) tick, Ixodes scapularis. The mammalian reservoirs for E chaffeensis and E ewingii include white-tailed deer, elk, rodents, coyote, fox, wolves, raccoon, opossum, and dogs. Like any bacterial infection, ehrlichiosis is treated with antibiotics. Early signs and symptoms of both ehrlichiosis and anaplasmosis usually include: Fever or chills Severe headache Muscle aches Nausea, vomiting, diarrhea, loss of appetite Rash Symptoms resemble those of Rocky Mountain spotted fever except that a rash is much less common. It is also the recommended drug for many other tick-borne infections, such as Rocky Mountain spotted fever.

Anaplasmosis in dogs is a tick-borne disease caused by the bacteria of the anaplasma genus, which are parasites that live inside blood cells.

Ehrlichiosis is caused by different species of ehrlichia bacteria. 4052 Bald Cypress Way. For the five-year reporting period from 2014 to 2018, 206 cases of ehrlichiosis and anaplasmosis and anaplasmosis were reported (Figure 1).

Anaplasmosis and dirofilariosis are the most probable infections. The disease is thought to be transmitted by the brown dog tick (Rhipicephalus sanguineus) and possibly lice. Ehrlichiosis, Anaplasmosis, and Related Infections in Animals Etiology. 850-245-4444. For dogs with non-complicated anaplasmosis (early detection and prompt treatment) the prognosis is excellent. E. ewingii. Ehrlichiosis in Dogs. The preferred host is the white-footed mouse. In the United States, E. canis is considered endemic in the southeastern and southwestern states, though the brown dog tick is found all throughout the United States and Canada. Acute Phase. The drug of choice for infections with human monocytic ehrlichiosis (HME) and human granulocytic anaplasmosis (HGA) in both adults and children is doxycycline. Anaplasma phagocytophilum, the most common form of the disease, is County-level distribution of Lyme disease, anaplasmosis, ehrlichiosis, and SFGR cases West Virginia, 2020. Ehrlichiosis is a disease carried by ticks that is found in dogs across the southern United States. Ehrlichiosis and anaplasmosis are tick-borne illnesses that cause unspecific symptoms, which can range from mild-moderate to severe, depending on the immunocompromised state of the patient. Anaplasmosis is a tick-borne disease that occurs in dogs, caused by either the bacteria Anaplasma platys or A. phagocytophila. Bacterial diseases such as those listed below can be very challenging to diagnose. Doxycycline for dogs is an antibiotic with a broad spectrum, used to treat different conditions. Anaplasmosis (Previously Known as Ehrlichiosis) in Dogs Most dogs with Ehrlichia spp. The only way for people, dogs, or other animals to get ehrlichiosis is through a tick bite. 1 Recognized Anaplasma species include Anaplasma bovis, Anaplasma marginale (and A marginale subsp centrale), Anaplasma ovis, Anaplasma phagocytophilum, and Synopsis. Humans can become infected by E. canis and other species after tick exposure.

El Repositorio Institucional Unicordoba facilita el acceso y maximiza la visibilidad de los documentos producidos por la Universidad de Crdoba en su funcin docente, investigativa y de extensin; ofreciendo el contenidos en acceso abierto. Ehrlichiosis and anaplasmosis are tick-borne illnesses that cause unspecific symptoms, which can range from mild-moderate to severe, depending on the immunocompromised state of the CDC anaplasmosis information overview. Hosts can be human, pet, or wild animals. In either case, the bacteria attack the blood cells and can be fatal. Tallahassee, FL 32399. Here, our Ventura vets explain ehrlichiosis' stages, symptoms and treatments in dogs. Ehrlichia are a type of bacteria that infect and live within the white blood cells of their hosts. In the time since canine ehrlichiosis due to Ehrlichia canis was first described in 1935 and first recognized in the United States in 1962, many key advances have been made in spp. Ehrlichiosis and anaplasmosis are two tickborne diseases that might not be on your radar, but they should be. This tick can also spread anaplasmosis, babesiosis, and Powassan disease. Harrus S & Waner T (2011) Diagnosis of canine monocytotropic ehrlichiosis (Ehrlichia canis): an overview.

Cases of ehrlichiosis are also reported in Wisconsin and Minnesota. The bacteria carried by the tick attacks a dog's white blood cells and can cause symptoms such as fever , swollen lymph nodes , People with weakened immune systems are at a higher risk of Ehrlichiosis is caused mainly by Ehrlichia chaffeensis; anaplasmosis is caused by Anaplasma phagocytophilum. Information has been continuously collected on these infections in Information has been continuously collected on these infections in Europe, and