Hand, foot, and mouth disease transmission routes

Written by Yao Li Qin
Pediatrics
Updated on September 03, 2024
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Hand, foot, and mouth disease is caused by an intestinal virus infection, characterized by a rash of scattered maculopapular and vesicular lesions on the hands, feet, mouth, and buttocks. Generally, the prognosis is good. The disease is quite contagious, primarily spreading through the gastrointestinal tract, respiratory tract, and close contact. Therefore, during peak seasons of hand, foot, and mouth disease, children should stay at home and avoid crowded places and playing with children who have the disease. The highest incidence of this disease is among children under three years old, so it is essential to pay attention to the prevention and health care of infants. If a child in kindergarten is found to have the disease, they should rest at home and not return to the kindergarten immediately.

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Written by Yao Li Qin
Pediatrics
1min 25sec home-news-image

Initial symptoms of hand, foot, and mouth disease

Hand, foot, and mouth disease is a common pediatric exanthematous disease caused by an enterovirus infection, primarily manifesting on the hands, feet, mouth, and buttocks with scattered vesicular and pustular rashes. The incubation period for hand, foot, and mouth disease generally ranges from three to five days. The initial stage of the illness may include fever and sore mouth, or discomfort in the throat, leading to reluctance in children to eat. Accompanying symptoms might include mild coughing, runny nose, and throat discomfort. During a physical examination, a doctor may observe scattered small vesicles in the mouth mucosa, or shallow ulcers that have already erupted. These are mainly found on the lingual and buccal mucosa, as well as the mucosa on the inner side of the lips and upper palate. Subsequently, rashes appear on the hands and feet, generally starting as maculopapular rashes that slowly turn into vesicular rashes. These rashes are distributed eccentrically and typically resolve on their own within two to three days without scaling, scarring, or pigmentation. The oral vesicles usually heal on their own within a week. Some children with milder cases may only exhibit rashes or vesicular pharyngitis.

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Written by Yan Xin Liang
Pediatrics
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How is hand, foot, and mouth disease transmitted?

Hand, foot, and mouth disease is an infectious disease caused by enteroviral infections. There are more than 20 types of enteroviruses that can cause hand, foot, and mouth disease, but the most common are Coxsackievirus A16 and Enterovirus 71. The main clinical symptoms include pain in the mouth, anorexia, low fever, and the appearance of small vesicles or ulcers on the hands, feet, mouth, and other areas. Most children can recover in about a week, but a few may develop serious complications such as myocarditis, pulmonary edema, and aseptic meningitis. The general transmission routes are through the digestive tract, respiratory tract, and close contact, such as through droplets, sharing utensils, and hand-to-mouth contact, etc.

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Written by Yao Li Qin
Pediatrics
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Is hand, foot, and mouth disease dangerous?

Hand, foot, and mouth disease is a common pediatric disease caused by an intestinal viral infection, characterized by fever and rash, with severities ranging from mild to severe. If caused by a typical enterovirus infection, hand, foot, and mouth disease generally recovers quickly with antiviral treatment and proper care of the mouth and skin. However, if caused by an EV71 virus infection, it poses certain risks. This is because the EV71 virus can affect the central nervous system, leading to symptoms such as increased intracranial pressure and respiratory and circulatory dysfunction. These complications can result in respiratory failure and cardiac failure, which are severe manifestations. Therefore, hand, foot, and mouth disease caused by the EV71 virus carries certain risks. Thus, it is important to administer a vaccine made from the EV71 virus to children to prevent severe hand, foot, and mouth disease.

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Written by Yao Li Qin
Pediatrics
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What should I do about hand, foot, and mouth disease?

Hand, foot, and mouth disease is a common exanthematous infectious disease in children caused by enterovirus infections. Most cases are mild to moderate and can be treated at home with oral medication. Doctors generally prescribe antiviral medications, and if the child's temperature exceeds 38.5 degrees Celsius, antipyretic medications are also required. If there is discomfort in the throat, some medications can be sprayed to relieve local discomfort. For severe cases, such as those caused by EV71 virus infection, it is crucial to be vigilant. This type of infection can lead to symptoms involving the nervous system and may rapidly progress to severe conditions. Therefore, if it is confirmed that the hand, foot, and mouth disease is caused by EV71 infection and the child's condition is serious, hospitalization should be promptly sought. Additionally, for children under three years old, it's important to actively vaccinate against hand, foot, and mouth disease to prevent illness caused by EV71 virus infection.

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Written by Yao Li Qin
Pediatrics
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Causes of Hand, Foot, and Mouth Disease

Hand, foot, and mouth disease is a rash illness characterized by scattered papules and vesicles on the hands, feet, mouth, and buttocks, caused by an enterovirus infection. It is a contagious disease caused by a viral infection, specifically by Coxsackievirus A16 and Enterovirus 71, which are part of the enterovirus group. Other Coxsackie enteroviruses can also cause hand, foot, and mouth disease. Common enterovirus infections can also lead to hand, foot, and mouth disease. This means that children who have had hand, foot, and mouth disease can potentially get it again, and this is important knowledge for everyone to understand.