How are hookworms transmitted? Hookworm is the source of infection

Hookworm is a disease caused by hookworms parasitic in the small intestine of the human body People with hookworm and those infected with hookworm are the source of infection; Infection between fingers and toes is the most common site of invasion; In areas where there is a habit of eating raw vegetables, it can be transmitted by mouth People are generally susceptible to hookworms Generally more young adults There are fewer children Most male patients In China, the hookworms parasitic on the human body are mainly duodenal hookworms and American hookworms Prevention of hookworm disease [Prevention] 1In the susceptible season, when the morning dew is not dry or the first sunny day after the rain, avoid contact with crops infected with hookworms, and wear rubber shoes, protective gloves, or topical protective agents such as 2% iodine solution and 25% alum solution when the site must workAfter being infected with hookworms, the sputum coughed up should not be swallowed; 3. Pay attention to environmental hygiene and strengthen fecal management.

Mainly contact transmission.

People with hookworm and carriers are the source of infection for hookworm disease. The epidemic of hookworm disease is closely related to various factors such as the natural environment, crops grown, production methods and living conditions. The development of hookworm eggs and hookworms in the outside world requires suitable temperature, humidity and soil conditions, so the infection season varies from place to place.

In Guangdong Province, the climate is warm and rainfall is abundant, so the infection season is long, and there is a chance of infection almost all year round. In Sichuan Province, the infection season is from April to September, and the epidemic peak is from May to July. In Shandong Province, the peak is in August every year, and the infection rate decreases by September.

Generally, when planting dryland crops such as sweet potato, corn, mulberry, tobacco, cotton, sugarcane and coffee after a long sunny day, if untreated human manure is applied as base fertilizer, the hands and feet have more opportunities to directly contact the hookworm in the soil during planting, and they are very susceptible to infection. Hookworm eggs do not develop easily in deep water, so the epidemic of hookworm disease has little to do with paddy field farming. However, if seedlings are raised in dryland hotbeds, or if they are transplanted and then dried in water, rice paddies may also become infected with hookworms.

In the special environment of the mine, due to the high temperature, high humidity, poor air circulation, sunlight and poor sanitary conditions, it is also conducive to the spread of hookworms. According to a survey of different types of mines in Sichuan Province, the average infection rate of coal miners is still high.

In hookworm endemic areas, the prevalence of infection in the population is not high until the age of 10 years, increases with age between the ages of 10 and 30 years, and remains stable. Since then, there has been a tendency to decrease with age. This phenomenon proves that humans can develop a certain degree of acquired immunity after being infected with hookworm.

Serological measures showed that the levels of IgE, IgG and 2-globulin in patients with hookworm disease were significantly higher than those in healthy patients without infection.