The manifestations of being infected by virus vary according to the type of virus and the invasion of virus into the tissues, but the common features are fever, inflammation, tissue necrosis, and so on.
1. Fever: When the human body is infected by a virus, the immune system is low, and it is easy to have a dysfunction of the thermoregulatory center, which leads to fever. Fever also occurs when the body’s immune system resists inflammation caused by the virus.
2. Inflammation: when the virus invades the tissues and organs, it will damage the local cells and cause the appearance of local inflammation.
3. Tissue necrosis: Inflammation continues to develop, causing necrosis on the surface of tissues or organs.
Different viruses affect different tissues, organs and systems, for example, hepatitis B virus affects the liver, HIV virus affects the immune system, invades different systems, the performance is also different, invades the gastrointestinal system will appear nausea and vomiting, abdominal pain and diarrhea, invades the nervous system will appear headache and coma, etc. It is recommended that the patient appears to have the discomfort in time to consult a doctor, as soon as possible treatment.