蜱（pí）也叫壁蝨，俗稱狗鱉。蟄伏在淺山丘陵的草叢、植物上，或寄宿於牲畜等動物皮毛間。不吸血時，小的才乾癟綠豆般大小，也有極細如米粒的；吸飽血液後，有飽滿的黃豆大小，大的可達指甲蓋大。蜱叮咬的無形體病屬於傳染病，人對此病普遍易感，與危重患者有密切接觸、直接接觸病人血液等體液的醫務人員或其陪護者，如不注意防護，也可能感染。
Pí (pí) is also called a niche, commonly known as shit. Cuckoo in the bushes, plants in the shallow hills, or lodging in the fur of livestock and other animals. When not sucking blood, small talents are like mung beans, and they are also very fine, such as rice grains. When they are full of blood, they have full size of soya beans and large nail covers. Anaplasmosis is a communicable disease, and people are generally susceptible to the disease. Medical personnel who are in close contact with critical patients and who have direct contact with the patient's blood or other body fluids may also be infected if they do not pay attention to protection.
成蟲在軀體背面有殼質化較強的盾板，通稱為硬蜱（pí），屬硬蜱科；無盾板者，通稱為軟蜱，屬軟蜱科。全世界已發現的約800餘種，計硬蜱科約700多種，軟蜱科約150種，納蜱科1種（僅存於歐洲）。中國已記錄的硬蜱科約100種，軟蜱科10種。蜱是許多種脊椎動物體表的暫時性寄生蟲，是一些人獸共患病的傳播媒介和貯存宿主。
Adults in the back of the body with a strong shell of the shield, known as the hard tick (pí), is a hard carp family; without shield plate, known as soft palate, is a soft tick family. About 800 species have been discovered around the world, including about 700 species of hard-shelled turtles, about 150 species of soft-shelled turtles, and 1 species of Nasidae (only in Europe). China has recorded about 100 species of hard ticks and 10 species of soft ticks. Earthworms are temporary parasites on the surface of many vertebrates, and are vectors and reservoirs of zoonoses.
蟲體橢圓形，未吸血時腹背扁平，背面稍隆起，成蟲體長2～10mm；飽血後脹大如赤豆或蓖麻籽狀，大者可長達30mm。表皮革質，背面或具殼。病毒侵入人體後直接作用於全身毛細血管和小血管，引起廣泛的血管壁損傷，使血管壁的通透性增高，導致組織或器官的水腫，從而出現全身皮膚粘膜的充血或出血，如病人的面頰、鼻、頸部、前胸、上臂等處發紅或有出血點，並危及心、肺、脾、胃、腎、腦垂體、腎上腺等多處臟器。
The worms are oval in shape. When they are not sucking blood, their backs are flat and their backs are slightly raised. Adults have body lengths of 2 to 10 mm. After engorgement, they swell, such as red beans or castor-seeds, which can be as long as 30 mm. Table leather quality, back or shelled. After the virus invades the human body, it directly acts on the whole body capillaries and small blood vessels, causing extensive damage to the blood vessel wall, increasing the permeability of the blood vessel wall, leading to edema of tissues or organs, and thus congesting or bleeding of the entire body's mucous membranes, such as the patient's Cheeks, nose, neck, chest, upper arm, etc., redness or bleeding, and endanger the heart, lung, spleen, stomach, kidney, pituitary gland, adrenal glands and other organs.
有些病人還有廣泛的微血栓形成，極易出現嚴重的水電解質酸鹼平衡紊亂。最為嚴重的是損害人的腎臟，重者往往死於尿毒症腎功能衰竭。病毒還會作用於神經系統，引起嚴重的頭痛、眼眶痛、腰痛及全身疼痛，病人普遍出現高熱。重症或未能及時治療的病人，後期往往出現心力衰竭、肺腫、自發性腎破裂等嚴重並發症。
Some patients also have extensive microthrombosis and are prone to severe water-electrolyte acid-base balance disorders. The most serious is damage to human kidneys, and severe cases often die of uremia renal failure. The virus also acts on the nervous system, causing severe headache, eyelid pain, back pain, and body aches. The patient is generally hyperthermia. Patients who are severely ill or fail to be treated in time often have serious complications such as heart failure, lung cancer, and spontaneous rupture of the kidney.
硬殼蜱蟲它在吸血的過程中是將整個頭部都埋藏在肉裡面，即使吸滿了血它也不會自動脫落，人工去取也不是一件容易的事情，更有甚者將它（蜱蟲）的身體一分為二、卻依然取不掉鑽進肉內的那一部分，而這正是硬殼蜱蟲最可怕的地方，或許我們可以想像這些血案的發生都源於這種硬殼蜱蟲。
The hard shell locust sucks the entire head in the meat during the blood sucking process. Even if it is full of blood, it will not fall off automatically. It is not an easy task to take it by hand. The body of a locust (mites) is divided into two parts, but it still can't get into the part of the meat. This is the most terrible part of the hard shell mites. Maybe we can imagine the occurrence of these bloodsheds are from this kind of Hard shell locust.
預防蜱咬1、消滅家畜體表和畜舍中的蜱蟲，可噴灑敵百蟲、敵敵畏等殺蟲劑。 2、加強個人防護，進入林區或野外工作，要穿長袖衣衫，紮緊腰帶、袖口、褲腿，頸部系上毛巾，皮膚表面塗擦藥膏可預防蜱蟲叮咬，外出歸來時洗澡，防止把蜱蟲帶回家。另外夏天，正是人們外出旅遊的好季節，在這裡我要提醒大家就是到野外遊玩時，除上述兩點要注意之外，別去尚未開發好的風景區、盡量少去草叢濃密的森林野地。這樣我們就會避免蜱蟲咬傷。
Prevention of bites 1. Elimination of aphids in livestock and poultry houses can spray insecticides such as trichlorfon and dichlorvos. 2. Strengthen personal protection, work in the forest or in the field, wear long-sleeved clothes, fasten the belts, cuffs, trousers, attach a towel to the neck, and apply cream on the skin to prevent worms from biting and bathe when returning. Bring locusts home. In the summer, it is a good season for people to travel. I would like to remind everyone here that in the wilderness, besides the above two points, you should not go to the untapped scenic areas and try to go as far as possible to the bushy forest wilderness. . In this way we will avoid locust bites.