What bugs are there in dogs that are harmful to people?

1, Toxoplasma gondii

Toxoplasma gondii parasitizes in cells, flows with blood, reaches all parts of the body, destroys the brain, heart and fundus, makes people's immunity decline and suffers from various diseases. Life cycle needs two hosts, the intermediate hosts include reptiles, fish, insects, birds, mammals and other animals and people, and the final hosts are cats and cats.

2, lice

Adults and nymphs of lice feed on their hosts all their lives. The main hosts are terrestrial mammals, a few are marine mammals, and humans are often parasitic. Lice is not only harmful to blood-sucking, but also makes the host itch and uneasy, and can infect many important human and livestock diseases.

Extended data

Transmission route of Toxoplasma gondii: People can also infect each other. Most people are infected with Toxoplasma gondii, forming immunity with worms, and it is difficult to have initial infection symptoms after being infected. Toxoplasma gondii patients have Toxoplasma gondii cysts in urine, saliva, tears and snot. Sneezing in patients with acute attack can be the source of droplet infection.

Toxoplasma gondii activity is the strongest in women with toxoplasmosis during menstruation. The menstrual blood discharged by women often contains a large number of Toxoplasma cysts, which is not a small source of infection and must not be ignored. In addition, the semen of men with toxoplasmosis also carries toxoplasmosis cysts, and humans can infect each other through sexual behavior.

Baidu encyclopedia-lice

Baidu encyclopedia-Toxoplasma gondii