Is Dog Hazardous Disease?

Parasitical Worms.com Dog and cat roundworm disease in humans was first described in Wilder in 1950 when the larvae of nematode worms in retinal granuloma were discovered. Then Beaver et al. (1952) for the first time used the word "visceral larva migrans"
► Headache for the whole month due to dog and cat roundworms "creeping" into the brain
► Heart shock caused by a dog tapeworm infection
► Skin changes abnormally due to dog flukes
► The procedure for testing and treating schistosomiasis in Anh Nga parasite clinic TP. HCM
Toxocara canis is called Toxocara canis in dogs

. It is called Toxocara canis, and in cats is Toxcara cati. Because of the infection rate from dog feces in the environment, it is often called a dog tapeworm.
To report a series of cases in adults and children, there is an increased eosinophilia in the blood associated with severe and prolonged illness in many organs, and when a biopsy detects the larvae of Toxocara canis or Toxocara cati [4]
For many years, human cat roundworm disease has been considered a rare disease in children, but with advances in serum diagnosed in recent years, the proportion of people who have tested positive for foreign antigens secretion of Toxocara sp is not low, both in children and adults and some authors argue that this is the most common helminthic disease in developed countries [10].
1.



. How is dog flu transmitted to humans?
The causative agent is Toxocara canis or Toxocara cati, a species of nematode commonly called roundworm of dogs and cats.
Toxocara canis will lay eggs, eggs in the stool in the environment and after 1-2 weeks the eggs will turn into embryos.
This is the stage that can make people sick if swallowing eggs. Children are the most susceptible to diseases due to the habit of playing with sandy soil, but sandy soil is a place to spread worm eggs due to the indiscriminate discharge characteristics of dogs and cats.
The process of transmitting tapeworm infection to contraception people
After swallowing eggs into the body, the worm larvae will be released, passing through the intestinal wall and along the bloodstream to the liver, lungs, central nervous system Here, the larvae can survive in the human body for months and then have an inflammatory reaction of the body that kills the moving larvae or causes them to stop growing, but only after the larvae Damage in tissues
2. Contact with cats and dogs spread tapeworm?
Due to the characteristics of dogs and cats that are very close to humans, the disease is distributed throughout the world and many authors consider it to be the most common parasitic animal disease in temperate regions [10,15]. Some surveys in the world show:
- Human serum in some western countries
+ Positive rate with Toxocara spp.



. from 2-5% in urban areas to 14.2-37% in rural areas. In the tropics, the percentage of positive sera was 63.2% in Bali, 86% on Saint-Lucia, 928% on La Réunion Island [10].
+ Toxocara-positive serum in Sri Lanka is 43% in rural areas (Iddawela et al., 2003) and 20% in urban areas (Fernando et al., 2007) [5].
+ In 1989, out of 6100 blood samples at the La Chaud-de-Fonds Blood Transfusion Center (Switzerland), there were 601 (9.9%) cases positive for Toxocara spp.



., And out of 501 pediatric blood samples in two diseases. La Chaud-de-Fonds and Delémont (Switzerland) have 18 (36%) positive cases [7].
+ The Centers for Disease Control and Prevention (CDC) has recorded 68 new cases of dog roundworm and cat's eye disease that can move in the eyes between September 2009 and September 2010 in the United States. .
Previously, a cross-sectional survey in the United States from 1988 to 1994 with more than 20,000 people over 6 years of age showed a positive serum ratio of 13.9% (Peter J. Hotez, 2009).
Situation in Vietnam:
Dog and cat roundworm disease in Vietnam has not been studied much, partly because the clinical symptoms are not specific, partly because the stool test is not applicable in this disease because the worms do not develop to the stage. They mature and lay their eggs in the intestines of humans.




In recent years, there have been many serological surveys, mainly with ELISA techniques but limited to a few specific locations and the number of samples is not much so the data are difficult to say about the overall infection situation in the country. .
+ A survey survey on the situation of Toxocara canis larvae infection in Thanh Tan commune, Tay Ninh town in 2009 by Dr. Doctor, Doctor Mai Anh Loi and his colleagues showed that the rate of serum positive for Toxocara canis is 20.6% [16].
+ Monitoring the situation of Toxocara canis infection among police officers who suspected infection with parasites came to see and treat at the hospital 30-4 TP. HCM, for the following data: in 2011 seropositive for Toxocara sp. were 40/861 (46%) cases, in 2012 this was 130/1628 (8%) cases [20].
Although there is no exact data on the disease situation, the chance of transmitting Toxocara canis eggs to humans in Vietnam is very high, leading to a situation that is not low due to dog and cat raising in the home.



. popular (to keep the house, as pets, food sources ...).
A survey of the situation of gastrointestinal nematode infection in 177 dogs at one s.

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