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網誌日期:2009-01-29 13:30

Zoonoses are diseases or that can be transmitted from animals to human beings -

 

Although humans are still more likely to contract illnesses from other humans zoonoses are important for every pet owner to know aboutThese are examples of the most common pet-borne diseases

 

Aedes Aegypti This infectious disease is manifested by a sudden onset of feverwith severe headachemuscle and joint pains (severe pain gives it the name break-bone fever or bonecrusher disease) and rashesThis disease had killed already thousands of people。(Deadly Diseases

 

Baccillary DysenteryThis's an infectious disease of the intestinal tract caused by bacteria of the genus SigellaIt is spread by contact with a patients or carriers or though food or water contaminated by their fecesIn most cases it occurs in summer and fall and clinically it can be divided into acute and chronic typesAcute bacillary dysentery has following symptomsfeverabdominal paindiarrheatenesmus and bloody purulent stoolsSymptoms of chronic bacillary dysentery arerecurrent or persistent abdominal painaccompanied with diarrheaalternation of diarrhea and constipation can also be presentAnother sign is intermittent appearance of mucopurulent and blood-stained stools。(Deadly Diseases

 

Boutonneuse Fever or Mediterranean Spotted FeverBoutonneuse fever is a fever as a result of a Rickettsial infection caused by the bacterium Rickettsial conorii and transmitted by the dog tickBoutonneuse fever is endemic in many countries surrounding the Mediterranean SeaThe disease manifests with chillshigh feversmuscular and articular painssevere headache and photophobiaThe location of the bite forms a black crust。(Deadly Diseases

 

Brucellosis or Malta feverIs a persistent infectious disease caused by a bacterium called brucella transmitted to humans from infected animalssuch as goatscattle or swine and marked by recurrent feversweatingweakness and generalized aches and painComplications may include arthritisheart disease and brain damage!(Deadly Diseases

 

Campylobacteriosis: This bacterial infection can result from contact with the diarrhea common in puppies and kittensHuman symptoms include feverabdominal pain and watery diarrheaIt is easily prevented by thoroughly washing any exposed skin

 

CholeraThis's an infectious gastroenteritis caused by the bacterium Vibrio choleraeTransmission to humans occurs through the process of ingesting contaminated water or foodIn its most severe formscholera is one of the most rapidly fatal illnesses known and a healthy person may become hypotensive within an hour of the onset of symptomsinfected patients may die within three hours if treatment is not provided。(Deadly Diseases

 

Dermatophytoses (a.k.a. ringworm, dermatomycoses): This zoonosis is transmitted in a variety of waysalthough physical contact with an infected animal is the most commonDry scaly spots will appear after one to two weeks and are usually confined to the hairier regions of the scalpforearms and faceHair will break off at the rootscreating bald spotsExposure can be greatly reduced by wearing rubber gloves and thoroughly washing after handling an infected animalAnimals should receive immediate attention by their veterinarian

 

Dengue FeverOne of the most notorious diseases killing thousands yearly especially children is Dengue fever and dengue hemorrhagic feverThese are acute febrile diseasesfound in the tropics and AfricaThe spread is similar to malariabut unlike malariadengue is often found in urban areas of tropical nationsIt is transmitted to humans by the Aedes aegypti which feeds during the day。(Deadly Diseases

 

Foot and Mouth DiseaseFoot and mouth disease is a zoonosis meaning that it is disease of animals that may be transmitted to man under natural conditions)。Of thisthere is no doubtThose at highest risk are young children--found to develop clinical infection more readily than adults--and those in certain occupational groups such as veterinariansfarm workers and their familiesbutcherslab workers and livestock auctioneersThe presence of minor breaks in the skinsuch as dermatitisor‘Even manicure procedures may cause sufficient abrasion to facilitate infection’There‘re several ways people can contract the virusThese include the handling of animals and inhalation of airborne viral particlesbut probably the most frequent routs of infection has been ingestion

 

Giardia: This intestinal disease occurs throughout the world and is common in dogs & catsLike many zoonosesGiardia is contracted by the fecal-oral routeSymptoms may include weight loss and chronic diarrheaThere are now reliable tests and drugs for treating Giardiabut a veterinarian or physician should be contacted at onceGiardia can be prevented through proper and thorough hand-washing

 

Japanese EncephalitisOne of the most prevalent diseases is the Japanese encephalitisThiss a disease caused by the mosquito-borne Japanese encephalitis virusDomestic pigs and wild birds are reservoirs of the virustransmission to humans may cause severe symptomsThis disease is most prevalent in Southeast Asia and the Far East。(Deadly Diseases

 

Kyasanur Forest DiseaseThis's a tick-borne viral hemorrhagic fever endemic to South AsiaThe disease was first reported from Kyasanur Forest of Karnataka in IndiaThe reservoir hosts for the disease are porcupinesrats and miceThe vector for disease transmission is a forest tick。(Deadly Diseases

 

Leptospirosis (a.k.a. canicola fever, Weil’s disease): This disease is spread through contact with an animal’s urinewhether directly or through contaminated soilwaterfoods, etcThe leptospires in the infected urine enter the human body through mucus membranes or cuts and abrasionsSymptoms include fever, nauseavomitingmuscle aches and occasionally jaundiceTo prevent exposurewear rubber gloves when cleaning up after your pet and avoid hand-eye or hand-mouth contact until you’ve thoroughly washed up

 

Lyme disease Lyme disease or borelliosis is the most common tick-borne disease in the Northern HemisphereThe bacteria are transmitted to humans by the bite of infected hard ticksEarly manifestations of infection may include feverheadachefatigue and a characteristic skin rash called erythema migrans

 

Mad Cow Disease Is the common term for Bovine Spongiform Encepholopathy (BSE)a progressive neurological disorder of cattle which can be transmitted to other speciesincluding humansThe disease is virtually 100% fatalThe human equivalent of Mad Cow DiseaseCruetzfeldt-Jakob Diseasecauses memory lossemotional instability including inappropriate outburstsan unsteady gaitprogressing to marked weaknesssevere rapidly progressive dementia and deathoften within a year of the onset of symptomsAre they a type of virus or bacteriaWhat are theyA prion is neither a virus nor a bacteriaPrions are proteins that contain no DNA or RNAtwo substances previously felt to be essential for reproduction of a living tissuePrions are normal constituents of the body when in their normal form or conformationbut they can become twisted in a conformational change a change in shape - in the way the molecule is folded),and then they are thought to cause disease!(Deadly Diseases

 

Murray Valley Encephalitis VirusThis's endemic to northern Australia and Papua New GuineaIt is the causal agent of Murray Valley encephalitis and in humans can cause permanent neurological disease or deathThis is a mosquito-borne virus that is maintained in a bird-mosquito-bird cycleWater birdsincluding herons and cormorantsprovide the natural reservoir for Murray Valley encephalitis virusHuman infection occurs only through bites from infected mosquitoesit cannot be transmitted from person to person。(Deadly Diseases

 

Psittosis or Parrot FeverPsittacosis or parrot fever and ornithosis is a zoonotic infectious disease caused by a bacterium and contracted not only from parrotssuch as macawscockatiels and budgerigarsbut also from pigeonssparrowsduckshensgulls and many other species of birdThis can be transmitted by inhaling dust from dried bird droppings or by handling infected birdsThe symptoms include feverheadachechills and loss of appetitecough and tirednessIn the most severe cases of parrot feverthe patient develops pneumonia。(Deadly Diseases

 

Q FeverIs an infectious disease transmitted by sheep and cattle and characterized by high feverchills and muscle painsThe infection results from inhalation of contaminated particles in the airand from contact with the vaginal mucusmilkfecesurine or semen of infected animalsIt is considered possibly the most infectious disease in the worldas a human being can be infected by a single bacterium。(Deadly Diseases

 

RickettsialpoxThis is an infectious disease transmitted by mites which infest mice and characterized by feverchillsrashheadache and backache but the most distinctive symptom is the rash that breaks outspanning the infected person's entire body。(Deadly Diseases

 

Salmonellosis: Most cases of Salmonellosis are foodborne and involve fecal contaminationThe incubation period can be as short as eight hours and symptoms may include sudden vomiting and diarrheaBirds and reptiles are particularly prone to carrying this bacteriaPrevention includes the proper cleaning of hands

 

Scabies (a.k.a. itch, mange): The parasite which causes this disease is transmitted through physical contactThis form of scabies is less serious than the human-to-human form and usually cures itself in three to four weeksInfected animals usually have blisters, scabs and hair loss along their earsmuzzles and forelegsPhysical contact with infected animals and their bedding should be avoided

 

Schistosomiasis or Bilhaziasis Is a tropical disease caused by a fluke worm whose larvae penetrate the skin and invades the circulatory systemIt is most commonly found in AsiaAfrica and South Americaespecially in areas with water that is contaminated with freshwater snailswhich may carry the parasiteAn acute disease caused by a rickettsial microorganism that is transmitted to humans by the bite of certain lice and fleasand is characterized by high feversevere headaches and a red rashRickettsia is endemic in rodent hostsincluding mice and ratsand spreads to humans through mitesfleas and body lice。(Deadly Diseases

 

TrichinosisTrichinosis or trichiniasis is a disease caused by a parasitic worm that eneters the body via undercooked or raw meat especially porkinvading the intestines and muscles and provoking gastro intestinal symptoms initially and muscle stiffness and pain later。(Deadly Diseases

 

TrichomoniasisThis is a vaginal infection by the trichomonas morganismIts most common in women and uncircumcised menFor uncircumcised menthe most common site for the infection is the tip of the penis。(Deadly Diseases

 

Tularemia (a.k.a. rabbit fever, deerfly fever): This disease is usually associated with an infestation of ticks and contact with their bodily fluidsA tick bite may create a localized ulcer or contact with mucus membranes can cause a severe infection of those tissuesInfected dogs and cats rarely display any symptomsTularemia can be prevented through various tick-eradication techniques such as dippingTweezers and rubber gloves should be used if ticks need to be removed by hand

 

Toxoplasmosis: Cats are the primary cause of Toxoplasmosis among humansas the organism is carried in their droppingsThe life-cycle of this parasite is very complexbut infection usually occurs when an owner comes into physical contact with the cat's feces while cleaning a litter boxHuman symptoms include headaches, enlarged lymph nodes and a flu-like illnessMost humans will be unaffected by its presencehoweverand expectant mothers can avoid exposure simply by avoiding litter-box duties while pregnant

 

TyphusAn acute disease caused by a rickettsial microorganism that is transmitted to humans by the bite of certain lice and fleas and is characterized by high feversevere headaches and a red rashRickettsia is endemic in rodent hostsincluding mice and rats and spreads to humans through mitesfleas and body lice。(Deadly Diseases

 

Typhoid FeverTyphoid fever or Yellow Jack is an illness caused by the bacterium Salmonella enterica serovar TyphiIt is transmitted by the ingestion of food or water contaminated with feces from an infected person。(Deadly Diseases

 

YawsThis's a tropical infection of the skin bonesbones and joints caused by the spirochete bacterium Treponema pertenueThe disease is transmitted by skin contact with infected individuals or eye gnatsthe spirochete entering through an existing cut or similar damage。(Deadly Diseases

 

 

Because healthyunbroken skin is very resistant to infectionthe agents causing zoonoses must enter the body through cutswoundsmucus membranesor other body openingsCuts should be covered and face masks may be worn when cleaning up after a pet — especially in terms of litter boxes

You need not come into direct contact with an infected animal to contract a diseaseMany zoonoses are transmitted via bodily fluidssalivaurinebloodnasal excretionsfecal materialetcProper precautions should be taken when cleaning up after any animal

Animals can carry a zoonosis without exhibiting any symptomsDon't trust your eyes。。。Use the same precautions with a healthy-looking animal as you would with a sick onePractice good pet hygieneThis more than any other thingwill reduce your risk of being exposed to disease

Vaccinating your animals against preventable diseases is always highly recommended。。。and rememberif you own a dog it is the law that he / she be vaccinated for rabies

 

Diseases transmitted from pets to people is not an excuse for abandoned petsAs long as pay attention to personal hygienemost of the communicable diseases are preventable。】
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