Schistosomiasis test, how schistosomiasis is checked

1.Pathogen testing.

Eggs are examined from the stool or hatched larvae and rectal mucosal biopsies.

1) Schistosoma eggs can often be detected in the feces of patients in severely infected areas or in the mucus and blood of patients with acute schistosomiasis in the areas of severe infection by direct smear, and the method is simple, but the detection rate of eggs is low.

2) The larvae hatching method can improve the positive detection rate.

3) Quantitative transparent method is used for schistosomiasis egg counting.

4) Rectal mucosal biopsy: Chronic and advanced schistosomiasis patients have thickened intestinal wall tissue, and the discharge of eggs is blocked, so it is not easy to find eggs in the feces, and proctoscopy can be applied.

2.Immunological tests.

1) Intradermal test (IDT) generally has a positive coincidence rate of about 90% with fecal test eggs, but false positive or false negative reactions can occur, and high cross-reactivity with other trematodiases; And the patient** can still be positive for many years later. This method is simple, rapid, and is often used to screen suspected cases in the field.

2) Detection of antibodies: the presence of specific antibodies in the serum of patients with scatoscopy, including IgM, IgG, IgE, etc., if the subject does not have a pathogen**, and the specific antibodies are positive, it is of great significance to determine the diagnosis; If the pathogen has been ** and the specific antibody is positive, it cannot be determined that the subject still has adult parasites in the body, because after **, the specific antibody can still be maintained in the body for a long time.

3) Detection of circulating antigensDue to the fact that the antibody remains in the host for a long time after **, the positive results often cannot distinguish between current infection and previous infection, and it is not easy to evaluate the efficacy. Circulating antigens are macromolecular particles emitted into the host body by living insects, mainly excretion, secretion or epidermal exfoliation of insects, which have antigenic characteristics and can be detected by serum immunological tests. Theoretically, the detection of CAG has its own advantages, which can not only reflect the active infection, but also evaluate the efficacy and estimate the species.

In general, there are schistosomiasis hospitals at the township level in endemic areas. In principle, there is no cost for schistosomiasis, but if you take the initiative to go to the hospital for examination, you may have to charge 10 to 20 yuan for the test.

Schistosomiasis is a chronic parasitic disease caused by Schistosoma schizosomes, which is mainly endemic in 73 countries in Asia, Africa and Latin America, affecting about 200 million people. There are two main types of schistosomiasis, one is intestinal schistosomiasis, which is mainly caused by Schistosoma mansoni and Schistosoma japonicum; The other is urinary schistosomiasis, which is caused by Schistosoma haematoidosis. The main epidemic in our country is Japanese schistosomiasis.

Etiological diagnosis: Examination of schistosomiasis eggs and larvae from the feces and biopsy of rectal mucosa eggs is called etiological examination and is the basis for the diagnosis of schistosomiasis. Commonly used etiological examination methods include modified Kato method, nylon bag egg collection and incubation method, plastic cup top tube incubation method, etc.

Acute schistosomiasis

It must be distinguished from sepsis, malaria, typhoid and paratyphoid, acute miliary tuberculosis, viral infections, and other intestinal diseases. It is mainly based on the place of origin, occupation, epidemic season, history of exposure to epidemic water, high fever, hepatomegaly with tenderness, eosinophilia, and positive stool hatching.

Local schistosomiasis control specialists. Schistosomiasis testing and etiology** are free of charge.

Hangzhou Center for Disease Control and Prevention schistosomiasis examination costs 10 yuan a time.

When I go to the blood prevention station, I have to charge 10 yuan for the examination.

Go to the hospital, ahh I don't know how much it costs, which ones to check, which ones are too professional, and I would like to know too much.

When symptoms such as rash, fever, abdominal pain, diarrhea, fatigue, and liver discomfort appear, you should be vigilant. However, there are also a higher number of people with schistosomiasis infection who do not develop these symptoms or do not develop them immediately. If you suspect that you are infected with schistosomiasis, you should immediately go to your local schistosomiasis control station for examination, or take the initiative to get tested when the blood prevention team goes to the countryside to check for the disease.

There are many ways to check for schistosomiasis, including stool tests, blood tests, and rectal biopsies. At present, ultrasound technology is often used in combination with stool examination and immunodiagnosis to check whether the liver and spleen are enlarged, whether there are sonographic features of schistosomiasis cirrhosis, and the degree of cirrhosis to determine the disease. In order to detect schistosomiasis early and get it in time without delaying the disease, everyone should be proactive in schistosomiasis testing.