Symptoms of foot-mouth disease

There are many diseases in the human body. These diseases will more or less endanger our lives and have many effects on our bodies. For example, there is a disease called foot, mouth and hand disease. This is a disease with obvious symptoms and a relatively slow course. However, this disease has certain precursors. However, many people do not know its specific precursors. So what are the precursors of foot, mouth and hand disease?

The pathogens that cause hand, foot and mouth disease are mainly Coxsackievirus types 2, 4, 5, 7, 9, 10, 16 of group A, and types 1, 2, 3, 4, 5 of group B of the Picornaviridae family and Enterovirus genus; enterovirus type 71; echovirus, etc. Among them, enterovirus 71 and coxsackievirus A16 are more common.

Enterovirus is suitable for survival and transmission in a humid and hot environment. It is insensitive to ether, dechlorocholate, etc., and 75% alcohol and 5% Lysol cannot inactivate it, but it is sensitive to ultraviolet rays and dryness. Various oxidants (potassium permanganate, bleaching powder, etc.), formaldehyde, and iodine can inactivate viruses. The virus can be quickly inactivated at 50°C, but a 1 mol concentration of divalent cations environment can increase the virus's resistance to heat inactivation. The virus can survive for one year at 4°C, can be stored for a long time at -20°C, and can survive for a long time in the external environment.

Hand, foot and mouth disease is an infectious disease caused by a variety of enteroviruses, mainly affecting infants and young children. Most patients have fever when they become ill, with body temperature reaching over 38°C, and papules and herpes appear on the oral mucosa, hands, feet and buttocks, accompanied by symptoms such as cough, runny nose, and loss of appetite.

Symptoms of hand, foot and mouth disease: Hand, foot and mouth disease is an infectious disease caused by a variety of enteroviruses, mainly affecting infants and young children. Most patients have fever when they become ill, with body temperature reaching over 38°C, and papules and herpes appear on the oral mucosa, hands, feet and buttocks, accompanied by symptoms such as cough, runny nose, and loss of appetite.

In the early stages of hand, foot and mouth disease , children will first have symptoms similar to upper respiratory tract infection, such as fever, cough, runny nose and drooling. Some children may have symptoms such as nausea and vomiting, and later oval or spindle-shaped blisters will appear on the back of the fingers and toes of the hands and feet. The blisters are surrounded by red halos, the fluid in the blisters is clear, and the long axis of the blisters is consistent with the skin texture.

Then the center of the blister becomes sunken, yellowed, dry, and peels off (desquamation). In addition, there are scattered, relatively hard, light red papules or blisters on the tips of the fingers and toes.

At the same time, there are scattered blisters in the mouth, such as on the lips, tongue, oral mucosa, and gums, but the blisters in the mouth quickly rupture to form small grayish white dots or a grayish white film with a red halo around it. Under the grayish white film, dot-like or flaky erosion surfaces can be seen.