What are the early symptoms of polio?

Everyone is familiar with polio. This disease is common in children. If it is treated in time, it will not cause life-threatening. However, in the later stages, this disease will have a more difficult factor that makes it difficult to treat. So, do you know about the early symptoms of polio? Next, I will explain it to you in detail.

The early stage should be differentiated from general upper respiratory tract infection, influenza, gastroenteritis, etc. Patients in the early stage of paralysis should be differentiated from various viral encephalitis, purulent meningitis, tuberculous meningitis and epidemic encephalitis B. The appearance of flaccid paralysis is helpful for diagnosis. The incubation period is 3 to 35 days, usually 7 to 14 days. According to the severity of symptoms and the presence or absence of paralysis, it can be divided into latent infection, abortive type, non-paralysis type and paralysis type.

1. Latent infection (asymptomatic type): No symptoms appear after infection, the virus reproduces only in the digestive tract, does not produce viremia, and does not penetrate into the central nervous system, but the virus can be isolated from the pharynx and feces, and specific neutralizing antibodies can be detected in the body.

2. Abortive type (mild): The virus invades non-neural tissues throughout the body, and the clinical symptoms lack specificity. They may include: ① upper respiratory tract inflammation symptoms, such as varying degrees of fever, pharyngeal discomfort, pharyngeal congestion, hyperplasia of the posterior pharyngeal wall lymphoid tissue, swollen tonsils, etc.; ② gastrointestinal symptoms, nausea, vomiting, diarrhea or constipation, abdominal discomfort, etc.; ③ flu-like symptoms, joint and muscle aches, etc. The symptoms last for 1 to 3 days and recover on their own.

3. Non-paralytic type: The polio virus invades the central nervous system, and the circulating nerve fibers spread throughout the body. Symptoms of this stage may appear at the beginning of the disease, but most patients may be asymptomatic or have reduced symptoms for 1 to 6 days after the prodromal period, and then enter this stage.

4. Paralysis type: It is characterized by clinical manifestations of the non-paralysis type, plus lesions involving the gray matter of the anterior horn of the spinal cord, brain and cranial nerves, leading to muscle paralysis.

Through the above understanding of the early symptoms of polio, I wonder if you know that this disease can be prevented and is almost life-threatening. However, some people underestimate the harm of this disease and cause patients to feel more uncomfortable. Therefore, it is extremely important to take care of your body in time. No matter what disease it is, it will be very troublesome in the later stage. Therefore, I sincerely hope that everyone will go to the hospital in time if they are sick. Finally, I wish you all a happy life.