Mature roundworms (female and male) parasites, usually in the human intestine. Can be sometimes and other sites (liver, intestine, appendix). Roundworm reproduction happens when the mature female eliminates about 240,000 eggs in about 24 hours, which reach the external environment with feces, where they can develop further because the roundworm hangs on the geohelmynt group, meaning that for development the eggs need soil.
Because the roundworm eggs posses the thicker skin , which contains about 5 layers, they are kept long in soil, water, fruit, vegetables, etc., remaining invasive up to 7 years. In beneficial conditions ( degrees 12- 37 degrees C, humidity of more than 8%) in the eggs the embryo begins to develop. In temperature of 24-30 degrees C the first stage of larvae development takes place in the egg for 12-15 days and at temperatures below these limits are extended to several months.
Reaching stage II of development in the environment, the larvae of the afterwards parasite hit the human intestine. In the intestine, under the action of different yeasts, the coating (cuticle) of the eggs dissolve and it releases the larvae. They migrate further, penetrating through the skin in the veins, then with the bloodstream they arrive in the liver, heart, pulmonary artery and then reaching the lungs. The larvae develop in the lung alveoli reaching stage 3 and 4.
Latest from migrating through the pulmonary alveoli migrates through bronchial, larynx and trachea, reach in the mouth being then swallowed with saliva and reaching again in the intestine. In the intestine they reach the development stage 5 and mature. Roundworms reproduction larvae migration duration is 14-15 days. The overall development time of the roundworms from invasion by the time the female submission the eggs, reach 10 to 11 weeks. Duration of the mature roundworm in the human intestine does not exceed more than a year.
Because the roundworm eggs posses the thicker skin , which contains about 5 layers, they are kept long in soil, water, fruit, vegetables, etc., remaining invasive up to 7 years. In beneficial conditions ( degrees 12- 37 degrees C, humidity of more than 8%) in the eggs the embryo begins to develop. In temperature of 24-30 degrees C the first stage of larvae development takes place in the egg for 12-15 days and at temperatures below these limits are extended to several months.
Reaching stage II of development in the environment, the larvae of the afterwards parasite hit the human intestine. In the intestine, under the action of different yeasts, the coating (cuticle) of the eggs dissolve and it releases the larvae. They migrate further, penetrating through the skin in the veins, then with the bloodstream they arrive in the liver, heart, pulmonary artery and then reaching the lungs. The larvae develop in the lung alveoli reaching stage 3 and 4.
Latest from migrating through the pulmonary alveoli migrates through bronchial, larynx and trachea, reach in the mouth being then swallowed with saliva and reaching again in the intestine. In the intestine they reach the development stage 5 and mature. Roundworms reproduction larvae migration duration is 14-15 days. The overall development time of the roundworms from invasion by the time the female submission the eggs, reach 10 to 11 weeks. Duration of the mature roundworm in the human intestine does not exceed more than a year.