Are Hematopoietic Nematodes Contagious?
Parasitical Worms.com Worms have only a developmental cycle through 2 host and human. Worms only in humans with a secondary host, mosquitoes, are divided into 2 groups:
- Group of worms that parasitize under the skin and organize
- The group of worms that only parasitize in lymph include Wuchereria and Brugia
In Vietnam, only lymphatic filariasis has been detected and only 2 types have been detected
Wuchereria bancrofti and Brugia malayi.
Fibrous, white or milky white. Males are 4 cm long and 0
. Difficult to distinguish between 2 types of parasites in humans.
- Structure: Wrapping the body is the shell, followed by the dermis and muscle layer. In there are simple structural parts, the uterus alone occupies the majority of the body, in which many vesicles contain larvae. Eggs are wrapped in very thin membranes in the larvae, the larvae only move vigorously out of the eggs.
The larvae are surrounded by a crust called the mantle. There is a head and tail in the body. In the body there are many seeds after dyeing called chromatin. An important feature of chromatin for distinguishing two types of parasitic worms is the tail chromosome.
Some characteristics to distinguish stage I larvae of the filariasis Wuchereria bancrofti and Brugia malayi are as follows:
2.1. Parasitic position
Adult worms parasitize in the lymphatic system The larvae live in the blood circulation system.
2.2. Evolution of the cycle
Worms reproduce sexually. The female worms produce larvae, the larvae from the lymphatic circulation system to the blood circulation system and often appear in peripheral blood at night (from 21:00 pm to 2:00 am). quickly move into the mosquito net to enter the stomach.
. In the stomach of mosquitoes, after 2 - 6 hours the larvae penetrate the stomach and leave the mantle. After 15 hours the larvae move to the mosquito chest muscles After 14 days the larvae changed their shells again to stage IV larvae. Parasites in the salivary glands wait for opportunities to enter the body.
After the mosquitoes suck blood, they transmit the worm larvae to the peripheral blood, from which the larvae follow the parasitic blood in the lymphatic system to develop into adult worms. The time from infection to larva appearance in the blood is about 3 - 7 months. For Wuchereria bancrofti usually parasitize the gonads and renal glands. Brugia malayi often parasites in the inguinal or axillary lymph nodes. Adult worms have a lifespan of about 10 years.
The larvae can survive in the blood circulation system for up to 10 weeks and will die without mosquitoes.
3.1. Clinical symptoms
The course of the disease through 3 periods:
- Incubation period: The patient does not feel any symptoms, may accidentally test for larvae in peripheral blood. The patient may experience mild rash.
This period lasts 5-7 years
- Onset of illness: Patients with fever, after a few days of lymphatic system inflammation, appear red, painful lines along the lymphatic vessels, usually the inner surface of the lower limb. Exacerbations of lymphatic system inflammation are increasing. Inguinal, axillary, or hard lymph nodes
- For Wuchereria bancrofti or diabetes mellitus appears due to lymphatic vessels bursting into the renal pelvis, urine is opaque white like rice water, so as not to settle, sometimes bloody Where the amount of nutrients in the urine much, so long urine can coagulate. The phenomenon of elephant edema gradually appears in the genitals.
. As for Brugia malayi, which causes elephant's edema in the limbs, it is more common to have lower extremities. This period can last for many years, the patient is rapidly losing weight. Blood tests can show filariasis larvae.
- Sequelae: Patients no longer have episodes of acute lymphadenitis but the lymph nodes enlarge frequently. There are episodes of one leg or one hand or genital, hard edema. This period rarely finds larvae in peripheral blood
4.1. Clinical diagnosis
Valid only if there are complications or sequelae.
. The first phase is easily overlooked or confused with other diseases.
4.2. Diagnostic tests
42.1 Blood test for filariasis larvae: The principle is to take blood at night (from 24 hours to 2 am) to make thick drops of giemsa-dyed or to look for worm larvae only as a common method. Best. But if the density of larvae in the blood is less then the probability of positive will be low. In that case, larvae concentrating methods such as (Knote, Harris, Millipore membrane filtration method) should be applied.
.2.1 Urine test looks for larvae
In the case of a patient with diabetes mellitus, take centrifugal urine to get staining.
4.2.3 Immunological diagnosis
Detecting antibodies in serum by immunological technique ELISA or immunofluorescence.
- Worms are concentrated only in the Northern provinces of Vietnam, but many central regions have been found to have lymphatic filariasis. The disease usually localizes into small points, each village and commune.
- In the Northern Delta region, the majority is B.
malayi (80-95%), mainly in wet rice-growing areas such as in the Red River Delta region, the four main provinces of Hai Duong, Ha Nam, Thai Binh and Hung. Yen.
- In the provinces of South Central region found in such provinces: Nghe An. Quang Binh Khanh Hoa - Southern region under the new investigation has not detected the disease. . Dịch vụ: Thiết kế website, quảng cáo google, đăng ký website bộ công thương uy tín
- Parasitical Worms.com Tests to find the cause of urticaria, diagnosis of urticaria results will be available throughout the day. After the results the doctor will explain, point out the abnormal signs for your child to understand and he will prescribe medication for home. Question Hello doctor: I ...Parasitical Worms.com Adult flukes are very small, 3 - 6 mm long, with 4 suction heads and a double hook, very short neck; coal consists of 3 segments, the final flukes have several hundred eggs, size 45 x 35 mcm, very similar to Toenia spp eggs. The disease is caused by the larva Echinococcus ...Parasitical Worms.com Some diseases caused by larvae of the anisakinae family parasitize marine mammals. In humans, the parasite falls into a dead-end, or severe or severe illness depending on the place of parasite, number of larvae and tissue responses. Diagnosis is often difficult and the most ...Parasitical Worms.com Illness caused by the nematode of Angiostrongylus cantonensis parasitizes and causes disease in the meninges, invasion of the brain can lead to death. Commonly called Meningitis - brain caused by Angiostrongylus cantonensis. The causative agent of nematode ...Fascioliasis is two types of fascioliasis and small liver fluke. People are infected with food, skin. Flukes can cause hepatitis, liver tumors, liver necrosis, but fortunately, liver fluke can be cured if detected early, treated in a reputable facility with a good doctor, using drugs. Good, ...Parasitical Worms.com Diagnosis is determined by seeing sparganum larvae from the wound. Clinical and prehistoric images of frog meat, eye-copying as well as the habit of eating undercooked snakes, mice, and eels are important factors for diagnosis. Doctor: Le Thi Huong Giang Medical Consultation: ...MUSHROOM DISEASE (Aspergillus) 1. Epidemiology. Aspergillus fungus is one of the largest fungal strains, present in all over the world, there are about 100 species, currently there are about 20-30 species that cause disease in humans, important strains are A. fumigatus, A. flavus , A. niger such as ...MUSHROOM DISEASE Cryptococcosis (Tolurosis, European Blastomycois) 1. Etiology and epidemiology Cryptococcosis is also known as the European Blastomycose mycosis caused by Cryptoccocus neoformans, a thick cystic yeast, has serotypes A, D (C. neoformans var. Neoformans) and B, C ( C.neoformans var. ...MUSHROOM DISEASE Sporotrichosis (Gardener Disease) 1. Epidemiology and etiology Sporotrichosis is a chronic disease caused by Sporothrix schenckii that causes damage to the skin or internal organs (also known as gardener disease - gardener's disease). This is a dimorphic mushroom. In nature, ...CANDIDA MUSHROOM 1. Germs Candidiasis is an acute, subacute or chronic disease caused by Candida-like yeasts, mostly Candida albicans. Candidiasis is available in the body (bronchus, oral cavity, intestine, vagina, skin around the anus) normally in non-pathogenic form. When having favorable ...