1. Cat-Scratch Disease catscratch disease. What is cat-scratch disease, and how do people getit? Cat-scratch What are the signs of cat-scratch disease? A sore http://familydoctor.org/handouts/024.html

Information from Your Family Doctor Cat-Scratch Disease What is cat-scratch disease, and how do people get it? Cat-scratch disease is an infection caused by bacteria (germs) carried in cat saliva. The bacteria can be passed from a cat to a human. Doctors and researchers think cats may get the bacteria from fleas, although this hasn't been proved. You can get cat-scratch disease from a cat bite or cat scratch. You can get the infection after a cat scratches you if the cat's paws have the bacteria on them. (A cat can get the bacteria on its paws when it licks itself.) With a cat bite, the cat can pass the bacteria to you in its saliva. You can also get the bacteria in your eyes if you pet a cat that has the bacteria on its fur and then rub your eyes. Many people who get cat-scratch disease do not remember being scratched or bitten by a cat. Cat-scratch disease is not a severe illness in people who are healthy. But it can be a problem in people with weak immune systems. People with weak immune systems include those who are receiving chemotherapy for cancer, those who have diabetes or those who have acquired immunodeficiency syndrome (AIDS). Should I call my doctor if I am bitten or scratched by a cat?

2. Cat-Scratch Disease Unraveling Mysteries Associated with catscratch disease, Bacillary Angiomatosis,and Related Syndromes. Cat scratch disease the mystery finally solved? http://www.cdc.gov/ncidod/eid/vol1no1/regnery.htm

EID Volume 1 * Number 1 January-March 1995 Synopsis Unraveling Mysteries Associated with Cat-Scratch Disease, Bacillary Angiomatosis, and Related Syndromes Russell Regnery, Ph.D., and Jordan Tappero, M.D. National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA Download Article The search for the infectious agents responsible for cat-scratch disease, bacillary angiomatosis, and related syndromes has a long and often circuitous history. Recognition of the etiologic agents and a new understanding of the fundamental features of the epidemiology and natural history of modern day Bartonella (formerly Rochalimaea)-associated diseases culminate a multipartite story that combines clinical medicine, traditional microbiology, and novel technological approaches to solve a long-standing enigma. The quest for the etiologic agent of cat-scratch disease (CSD) has frequently been described as a mystery . Indeed, the search has many qualities of a mystery novel; the pursuit has spanned several decades and recently taken several unexpected turns. During this period of important discovery, major microbial suspects have undergone name changes, novel microbial culprits have been introduced, new groups of affected patients have been recognized, and yet significant questions remain to be answered. Scientific and medical interest has been high; approximately 900 publications have dealt with CSD since the first good clinical description of the disease in 1950

3. Cat-Scratch Disease In Children --- Texas, September 2000--August 2001 catscratch disease in Children - Texas, September 2000August 2001. Cat-scratchdisease in the United States an analysis of three national databases. http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5110a4.htm

Cat-Scratch Disease in Children - Texas, September 2000August 2001 Cat-scratch disease (CSD), a bacterial infection caused by Bartonella henselae , has emerged as a relatively common and occasionally serious zoonotic disease among children and adults. To illustrate the spectrum of clinical manifestations of CSD observed during a 1-year period, Texas Children's Hospital (TCH) in Houston reviewed the medical records of 32 children evaluated at TCH during September 2000August 2001 whose antibody titers indicated recent Bartonella infection. This report summarizes the evaluations of these cases and highlights four manifestations of infection with this pathogen in children. The findings emphasize that although CSD is generally a mild, self-limited illness, the differential diagnosis often includes more serious conditions (e.g., lymphoma, carcinoma, mycobacterial or fungal infection, or neuroblastoma) that might result in protracted hospital stays and lengthy treatments before diagnosis. Timely assessment of CSD is important, particularly when invasive diagnostic measures are being considered. Case Reports Case 1.

4. Cat Scratch Cat Scratch Disease. catscratch disease (CSD) is probably the mostcommon Bartonella infection seen by pediatricians in the US. http://home.coqui.net/myrna/csd.htm

Cat Scratch Disease DIFFERENTIAL DIAGNOSIS It can include virtually all known causes of lymphadenopathy. As a general rule the diagnosis is favored by chronicity, unilateral occurrence, tenderness and characteristic sites of involvement, such as the axillary, epitrochlear and preauricular nodes. Cervical, femoral, inguinal and generalized lymph node involvement is less specific for CSD and necessitates more care in differential diagnosis. The most common diagnoses in a series of patients with adenopathy and negative CSD skin test were pyogenic lymphadenitis or abscess (29), benign of malignant neoplasms (12), and cervical adenitis caused by mycobacteria (10). Tularemia, toxoplasmosis, plague, and Kawasaki disease must be considered because of the need for specific therapy. CLINICAL MANIFESTATIONS DIAGNOSIS TREATMENT CSD is almost uniformly a self-limiting illness, regardless of antibiotic treatment. For the majority of patients with CSD, management should include conservative symptomatic care and observation. Complete resolution of lymphadenopathy usually occurs after 2 to 6 months. Patients with severe CSD (encephalopathy, neuroretinitis) may have a shortened course and thus benefit from antibiotic therapy, but choice of antibiotics is unclear. Studies by Margileth on 268 patients found that rifampin, ciprofloxacin, gentamicin, and trimethoprim-sulfamethoxazole (TMS-SMX) appeared to have clinical efficacy in patients with CSD (listed in order of clinical efficacy from greatest to least), but failures also have been reported after treatment with gentamicin and TMS-SMX. In addition, in vitro and in vivo antibiotic susceptibilities to Bartonella species often do not correlate and cannot be used to guide antibiotic recommendations.

5. Cat-Scratch Disease - DrGreene.com Dr. Alan Greene explains the mystery surrounding cat scratch disease,past and present. catscratch disease. I would like to know http://www.drgreene.com/21_821.html

QUICK SEARCH A - Z Guide Allergies Allergy Care Guide Asthma Care Guide Bedwetting Breastfeeding Childhood Obesity Diabetes Care Guide Ear Infections Genetics Immunizations Infectious Diseases Parenting Potty Training Rashes Safety Sleep DrGreene.com Topic Centers Mission Reviews Awards Readers Comments Press Room Partners and Supporters Contact Us Pediatric Information A-Z Guide Allergy Care Guide Asthma Care Guide Diabetes Care Guide DrGreene´s Chats FAQ Fast Facts Feature Articles Guidelines Pediatric Updates Special Feature Top Tips Community Activty Guide Advanced Search Community Central Chat Chat Schedule Cute Faces Family Friendly Recipes Parent-to-Parent Resources The DrGreene Team Newsletter Prenatal Newborn Infants Toddlers Pre-Schoolers School Age Teens / Adolescents Multimedia Library Children's Health Fertility Cat-Scratch Disease I would like to know what exactly is "cat-scratch fever". I would also like to know how serious it is. Why do children get it? Do all cats have the potential to give it to them? Is it the same as germs in a paper cut? Cheryl Michalec Teacher Yadkinville, North Carolina

6. Cat-Scratch Disease catscratch disease. cat-scratch disease is a bacterial disease that resultsfrom a scratch or bite by a cat. What is cat-scratch disease? http://www.astdhpphe.org/infect/catscratch.html

Cat-Scratch Disease Cat-scratch disease is a bacterial disease that results from a scratch or bite by a cat. Persons with cat-scratch disease can have a range of illnesses from mild to severe. Cat-scratch disease usually causes swollen lymph glands near the site of the scratch or bite. Most people get better on their own in about 3 weeks. To prevent cat-scratch disease, avoid provoking cats and kittens. Thorough cleaning of cat scratches and bites might also help. What is cat-scratch disease? Cat-scratch disease is an infectious disease that results from a scratch or bite by a cat. Persons with cat-scratch disease can have a range of illnesses from mild to severe. What is the infectious agent that causes cat-scratch disease? Cat-scratch disease is caused by Bartonella henselae , a bacterium. Where is cat-scratch disease found? The bacterium that causes cat-scratch disease is found in all parts of the world. The bacterium is carried by cats and kittens. Infected animals do not become sick. How is cat-scratch disease spread?

7. Publications - Current Fact Sheets - Cat Scratch Disease Current Fact Sheets. catscratch disease. What is cat-scratch disease? Cat-scratchdisease is an infectious disease that results from a scratch or bite by a cat. http://www.astdhpphe.org/catscratch.asp

Select a QuickLink Reports Fact Sheets News ASTDHPPHE 1101 15th Street, N.W. Suite 601 Washington, DC 20005 Phone: (202) 659-2230 Fax: (202) 659-2339 director@astdhpphe.org Publications Current Fact Sheets Cat-Scratch Disease Cat-scratch disease is a bacterial disease that results from a scratch or bite by a cat. Persons with cat-scratch disease can have a range of illnesses from mild to severe. Cat-scratch disease usually causes swollen lymph glands near the site of the scratch or bite. Most people get better on their own in about 3 weeks. To prevent cat-scratch disease, avoid provoking cats and kittens. Thorough cleaning of cat scratches and bites might also help. What is cat-scratch disease? Cat-scratch disease is an infectious disease that results from a scratch or bite by a cat. Persons with cat-scratch disease can have a range of illnesses from mild to severe. What is the infectious agent that causes cat-scratch disease? Cat-scratch disease is caused by Bartonella henselae , a bacterium.

8. EMedicine - Catscratch Disease : Article By Joseph R Lex, Jr, MD Synonyms and related keywords catscratch disease, Parinaud oculoglandulardisease, kitten scratch disease, la maladie des griffes du chat,. http://www.emedicine.com/emerg/topic84.htm

(advertisement) Home Specialties CME PDA ... Patient Education Articles Images CME Patient Education Advanced Search Link to this site Back to: eMedicine Specialties Emergency Medicine Infectious Diseases Catscratch Disease Last Updated: August 9, 2001 Rate this Article Email to a Colleague Synonyms and related keywords: cat-scratch disease, Parinaud oculoglandular disease, kitten scratch disease, la maladie des griffes du chat, AUTHOR INFORMATION Section 1 of 10 Author Information Introduction Clinical Differentials ... Bibliography Author: Joseph R Lex, Jr, MD , Consulting Staff, Department of Emergency Medicine, Chestnut Hill Hospital Joseph R Lex, Jr, MD, is a member of the following medical societies: American Academy of Emergency Medicine , and American College of Emergency Physicians Editor(s): Jeffrey Glenn Bowman, MD, MS , Consulting Staff, Department of Emergency Medicine, Mercy Springfield Hospital; Francisco Talavera, PharmD, PhD , Senior Pharmacy Editor, Pharmacy, eMedicine; Barry J Sheridan, DO

9. Diagnosis And Management Of Cat-Scratch Disease In Primary Care Diagnosis and Management of catscratch disease in Primary Care. Cat-scratchdisease occurs worldwide and all ethnic groups are affected. http://www.ispub.com/journals/IJANP/Vol1N2/catscratch.htm

ISPUB.com subscribes to the The Internet Journal of Advanced Nursing Practice TM ISSN: 1523-6064 Printable Version Diagnosis and Management of Cat-Scratch Disease in Primary Care Nancy H Busen, PhD, RN, CS Associate Professor of Nursing School of Nursing, Room 5.534, 1100 Holcombe Blvd. Houston, Texas 77030 The University of Texas-Houston Health Science Center Tammey Scarborough, MSN, RN, C-PNP Pediatric Nurse Practitioner The Sadler Clinic Citation: Nancy H Busen, Tammey Scarborough: Diagnosis and Management of Cat-Scratch Disease in Primary Care . The Internet Journal of Advanced Nursing Practice. 1997. Volume 1 Number 2. Table of Contents Abstract Case Study Treatment and Follow-up Epidemiology and Transmission ... References Abstract Cat-scratch disease (CSD) is a relatively common, zoonotic, infectious disease transmitted by young cats that serve as passive vectors for the bacillus Bartonella henselae. Although CSD can affect persons of any age, the condition is most common in previously healthy children and adolescents. Clients with CSD generally present with a positive history of contact with young cats, an inoculation skin papule, and proximal, regional lymphadenitis which can persist for several months. The typical course of CSD is usually benign and self-limiting and requires only supportive therapy. This article discusses the diagnosis and management of uncomplicated CSD in the primary care setting. Recommendations for prevention, reflective of the Centers for Disease Control guidelines, are included.

10. Cat-Scratch Disease catscratch disease. by Charles H. Booras, MD. 5/3/97. What is cat-scratchdisease, and how do people get it? cat-scratch disease http://www.jaxmed.com/catscratch.htm

Cat-Scratch Disease by Charles H. Booras, MD What is cat-scratch disease, and how do people get it? Cat-scratch disease is an infection caused by bacteria (germs) carried in cat saliva. The bacteria can be passed from a cat to a human. Cats may get the bacteria from ticks and fleas, although this hasn't been clearly proven yet. Studies in the early 1990's found that the Bartonella henselae bacterium is responsible for the disease. Approximately 38% of household cats tested positive for the bacterium in one study from 1992. You can get cat-scratch disease from a cat bite or cat scratch. You can get the infection after a cat scratches you if the cat's paws have the bacteria on them. A cat can get the bacteria on its paws when it licks itself. Then, when the cat scratches you, the bacteria on the cat's paws and claws may be passed on to you. With a cat bite, the cat can pass the bacteria to you in its saliva. You can also get the bacteria in your eyes if you pet a cat that has the bacteria on its fur and then rub your eye with the hand you used to pet the cat. You are at higher risk if your cat sleeps with you, licks you, or is allowed outdoors. The symptoms of cat-scratch disease develop about six to eight weeks after a cat scratch, bite, or other direct contact with a cat or it's saliva. Many people who get cat-scratch disease do not ever remember being scratched or bitten by a cat.

11. Cat Scratch Disease Cat Scratch Disease catscratch disease. Book, Home Page. http://www.fpnotebook.com/ER3.htm

Home About Links Index ... Editor's Choice Paid Advertisement (click above). Please see the privacy statement Emergency Medicine Dermatology Assorted Pages Cat Bite Cat Scratch Disease Dog Bite Dog Bite Infection ... Snake Antivenin Cat Scratch Disease Cat-Scratch Disease Book Home Page Cardiovascular Medicine Dental Dermatology Emergency Medicine Endocrinology Gastroenterology General Medicine Geriatric Medicine Gynecology Hematology and Oncology HIV Infectious Disease Jokes Laboratory Neonatology Nephrology Neurology Obstetrics Ophthalmology Orthopedics Otolaryngology Pediatrics Pharmacology Prevention Psychiatry Pulmonology Radiology Rheumatology Sports Medicine Surgery Urology Chapter Emergency Medicine Index Cardiovascular Medicine Dermatology Environmental Injury Examination Fluids, Electrolytes, and Nutrition General Neurology Pharmacology Prevention Procedures Radiology Resources Poisoning and Toxicology Traumatic Injury Page Dermatology Index Bites Animal Cat Bites Animal Cat Scratch Bites Animal Dog General Bites Animal Dog Infection Bites Animal Snake Bites Human Bites Insect Bites Insect Mosquito Bites Spider Black Widow Bites Spider Brown Recluse Stings Bee Stings Scorpion Epidemiology Most common in young patients Age under 21 years in 80% of cases Etiology Rochalimaea henselae ( Gram Negative Rod Signs Cat scratch or bite Local Papule Pustule or Vesicle overlying scratch Persistent painful Regional Lymphadenopathy Overlying reddened skin Lymph nodes fluctuant but sterile Complications (2%) Neurologic involvement Liver or spleen involvement

12. Virtual Children's Hospital: CQQA: Cat Scratch Disease Pediatrics Common Questions, Quick Answers. Cat Scratch Disease. DonnaD'Alessandro What is catscratch disease? cat-scratch disease http://www.vh.org/pediatric/patient/pediatrics/cqqa/catscratch.html

Pediatrics Common Questions, Quick Answers Cat Scratch Disease Donna D'Alessandro, M.D. Susan Kinzer, M.P.H. Peer Review Status: Internally Reviewed Creation Date: October 2002 Last Revision Date: October 2002 Common Questions, Quick Answers What is cat-scratch disease? What causes it? Who can get it? ... When should I call the doctor? What is cat-scratch disease? Cat-scratch disease is an infection that occurs after your child is scratched or bitten by a cat. What causes it? A bacterium (germ) called Bartonella henselae causes cat-scratch disease. The germ is found all over the world. Who can get it? Anyone can get cat-scratch disease. It most commonly occurs in children and teens. People who own cats are also at higher risk. What are the signs and symptoms? Within 7 to 12 days a sore can form where he was scratched or bitten. Swollen lymph nodes appear within 1 to 3 weeks of the scratch or bit. These lymph nodes can be sore or painful. Fever Tiredness Loss of appetite Headache Is it contagious? No. Cat-scratch disease cannot be passed from person-to-person. You can get it from an infected cat.

13. Encephalitis Associated With Cat Scratch Disease -- Broward And .. Epidemiologic Notes and Reports Encephalitis Associated with Cat Scratch Disease Broward and Palm Beach Counties, Florida, 1994. catscratch disease. http://wonder.cdc.gov/wonder/prevguid/m0033958/m0033958.asp

CDC WONDER CDC WONDER Home Utilities Help Contact Us Epidemiologic Notes and Reports Encephalitis Associated with Cat Scratch Disease Broward and Palm Beach Counties, Florida, 1994 MMWR 43(49);909,915-916 Publication date: 12/16/1994 Table of Contents Article Editorial Note References POINT OF CONTACT FOR THIS DOCUMENT: Tables Serologic results for cat scratch disease encephalitis patients.. Article On August 14, 1994, the Broward County Public Health Unit of the Florida Department of Health and Rehabilitative Services was notified of three children from Pompano Beach who were hospitalized with encephalitis attributed to cat scratch disease (CSD). All three children (aged 5, 6, and 11 years) were previously healthy and had no histories of seizure disorders or diagnoses of CSD. This report summarizes the investigation of these cases. On August 12 and 13, during a 26-hour period, each child entered the emergency department of the same hospital with sudden onset of generalized seizures, coma, and respiratory depression requiring intubation and assisted ventilation. Two of the children had focal lymphadenopathy (axillary and epitrochlear) on admission; cervical lymphadenopathy developed in the third child during hospitalization. Clinical examinations and laboratory tests ruled out some causes of encephalopathy, including viral infections (e.g., herpes simplex and arboviruses), metabolic disorders, and toxic ingestions. On September 5 and 27, additional cases of CSD encephalitis were confirmed in a 9-year-old boy and a 3-year-old girl from the same area (Fort Lauderdale and Boynton Beach). CSD lymphadenopathy had been diagnosed in both children approximately 3 weeks before the onsets of seizure and coma. Although the girl had been treated with successive courses of amoxicillin/clavulanate potassium and trimethoprim-sulfamethoxazole before the onset of CSD encephalitis, both of these cases were clinically similar to the first three cases.

14. Communicable Diseases - Cat-Scratch Disease catscratch disease. What is cat-scratch disease? cat-scratch disease isan uncommon illness that can be transmitted to people by pet cats. http://www.state.hi.us/doh/resource/comm_dis/cddcatsc.htm

Skip Menu Cat-Scratch Disease What is cat-scratch disease? Cat-scratch disease is an uncommon illness that can be transmitted to people by pet cats. The agent that causes cat-scratch disease is a rickettsial (bacteria-like) organism called Bartonella henselae . Infected cats can transmit the illness to people even if the cats themselves do not appear to suffer any adverse effects from being infected. How do you get it? You can get cat-scratch disease when infected cats (usually kittens) bite or scratch the handler. You can also get it when an infected cat licks an open scrape or wound. What are the symptoms of cat-scratch disease? At first, the scratch or bite will be red and sore, but without pus. The wound later changes to a blister-like sore that breaks open. The sore then dries out and heals in 1 to 3 weeks. Within 2 weeks of being scratched, the lymph nodes closest to the site of the scratch may become swollen. Fever is usually present. Other symptoms include fatigue, loss of appetite, weakness, chills, aches, and a general feeling of being ill. When do symptoms start?

15. Cat Scratch Disease Communicable Disease Report. Cat Scratch Disease A Review. catscratch disease.Pediatr Infect Dis J 1997;16163-79. 2 Demers DM, Bass JW, Vincent JM, et al. http://www.state.hi.us/health/resource/comm_dis/r99-cat.html

Skip Menu Communicable Disease Report Cat Scratch Disease: A Review Background Cat scratch disease (CSD) is common in Hawai`i. The causative organism is a Gram-negative bacterium Bartonella henselae, formerly known as Rochalimaea henselae. B. henselae bacteremia occurs in flea-infested, well-appearing kittens usually less than one year old, and less commonly in older cats. The organism is transmitted among cats by the cat flea; it is transmitted to humans by a cat scratch, bite or other intimate contact. Typical CSD CSD occurs as both typical and atypical disease.1 Typical CSD in an immunocompetent host is manifested by a characteristic and highly predictable clinical course. In nearly all cases patients give a history of a scratch, bite, contact or intimate association with a cat, most often a newly acquired kitten. Typically a round, red-brown, nontender papule develops in the scratch line after three to 10 days. It may vary in size from one to several millimeters (mm) and may persist for a few days to as long as two to three weeks. In the following one to two weeks one or more regional lymph nodes that drain the area gradually enlarge. The most commonly involved lymph nodes are the anterior cervical, axillary, inguinal, femoral, preauricular, supraclavicular, and epitrochlear nodes. However any node can be involved if it is in the path of lymphatic drainage from a site that has been inoculated with B. henselae. CSD lymph nodes tend to be large with an average diameter of four to six centimeters (cm) at the time of maximum size, but can be as large as 10-13 cm. After one to two weeks of enlarging, they remain the same size for two to three weeks and then resolve over an additional period of two to three weeks. Although most of the nodes may be moderately tender, some are nontender. The usual course of the disease is two to three months. Some cases are more severe and more protracted, and may last up to six to seven months.

16. Cat Scratch Disease Cat Scratch Disease. MM Carr DDS MD MEd. What is it? Smith DL. catscratch diseaseand related clinical syndromes. Am Family Physician 1997;55(5)1783-8. Back. http://icarus.med.utoronto.ca/carr/manual/catscratch.html

Cat Scratch Disease MM Carr DDS MD MEd What is it? Cat scratch disease is a granulomatous lymphadenitis, commonly related to scratches from domestic cats, and most common in the head and neck. It is caused by Bartonella henselae There are no systemic signs or symptoms. Patients, most commonly children, present with lymphadenopathy. Investigations Diagnosis can be made with a history of cat exposure, a positive Hanger-Rose skin test, and a biopsy specimen stained with Warthin-Starry silver which shows the bacilli. There is a serum immunofluorescenct antibody test for the bacteria which is newly available and relatively sensitive. Treatment The disease is self-limited. There is some beneficial effect from lymph node aspiration. Severe or persistent cases respond to erythromycin or doxycycline. References Smith DL. Cat-scratch disease and related clinical syndromes. Am Family Physician 1997;55(5):1783-8. Back Back to Table of Contents

17. èץ²¡ Cat-Scratch Disease The summary for this Chinese (Simplified) page contains characters that cannot be correctly displayed in this language/character set. http://www.zgxl.net/sljk/crb/mzb.htm

¨×¥²¡ Cat-Scratch Disease ¹ù²·ÀÖ ÖйúÐÄÀíÈÈÏß http://www.zgxl.net ¡¡¡¡±¾²¡ÎªÓɳèÎ勤«²¥¸øÈ˵ĽÏÉÙ¼ûµÄ¼²²¡¡£Ö²¡Òò×ÓΪBartonellaHenselaeµÄÁ¢¿Ë´ÎÊÏÌ壬¸ÐȾµÄ¨ÉõÖÁ¿ÉÎÞ²¡×´µ«ÈÔ¿É´«²¥¼²²¡¡£

18. Diseases And Conditions -- Discovery Health -- Cat Scratch Disease cat scratch disease By Danielle Zerr, MD. catscratch disease is an infectioncaused by the bacteria Bartonella henselae. What is going on in the body? http://health.discovery.com/diseasesandcond/encyclopedia/286.html

cat scratch disease By Danielle Zerr, MD Cat-scratch disease is an infection caused by the bacteria Bartonella henselae. What is going on in the body? The Bartonella henselae bacteria causes a local infection at the site where it entered the body. Lymph nodes near the area become swollen 1 to 7 weeks after exposure to the bacteria. Sometimes, a small, solid skin lesion will develop at the site. Most cases of cat- scratch disease are self-limited, which means they go away on their own. In rare cases, cat-scratch disease can cause infections in other body areas, such as the following: conjunctivitis , which involves the eyes encephalitis , which involves the brain meningitis , which involves the brain and spinal cord osteomyelitis , which involves bone pneumonia , which affects the lungs People with impaired immune systems are more likely to suffer severe and complicated infections. This includes people with immunodeficiency disorders , such as HIV . People who are being treated with chemotherapy or radiation therapy for cancer are also at higher risk.

19. Cat-scratch Disease catscratch disease. Definition. cat-scratch disease is an uncommon infectionthat typically results from a cat's scratch or bite. http://www.healthatoz.com/healthatoz/Atoz/ency/cat-scratch_disease.html

Encyclopedia Index C Home Encyclopedia Encyclopedia Index C Cat-scratch disease Definition Cat-scratch disease is an uncommon infection that typically results from a cat's scratch or bite. Most sufferers experience only moderate discomfort and find that their symptoms clear up without any lasting harm after a few weeks or months. Professional medical treatment is rarely needed. Description Cat-scratch disease (also called cat-scratch fever ) is caused by the Bartonella henselae bacterium, which is found in cats around the world and is transmitted from cat to cat by fleas. Researchers have discovered that large numbers of North American cats carry antibodies for the disease (meaning that the cats have been infected at some point in their lives). Some parts of North America have much higher rates of cat infection than others, however. Bartonella henselae is uncommon or absent in cold climates, which fleas have difficulty tolerating, but prevalent in warm, humid places such as Memphis, Tennessee, where antibodies were found in 71% of the cats tested. The bacterium, which remains in a cat's bloodstream for several months after infection, seems to be harmless to most cats, and normally an infected cat will not display any symptoms. Kittens (cats less than one year old) are more likely than adult cats to be carrying the infection. Bartonella henselae can infect people who are scratched or (more rarely) bitten or licked by a cat. It cannot be passed from person to person. Although cats are popular pets found in about 30% of American households, human infection appears to be rare. One study estimated that for every 100,000 Americans there are only 2.5 cases of cat-scratch disease each year (2.5/100,000). It is also unusual for more than one family member to become ill; a Florida investigation discovered multiple cases in only 3.5% of the families studied. Children and teenagers appear to be the most likely victims of cat-scratch disease, although the possibility exists that the disease may be more common among adults than previously thought.

20. èץ²¡ Cat-Scratch Disease The summary for this Chinese (Simplified) page contains characters that cannot be correctly displayed in this language/character set. http://www.gdciq.gov.cn/ywxx/jyjy/wsjyjy/13/CSheet\cat.htm

Cat-Scratch Disease Bartonella Henselae

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