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Virus hepatitis. At the beginning of the disease, there are symptoms such as fever, listlessness, fatigue, dizziness and headache. The main points of differentiation are long course of disease, nausea, jaundice, pain in liver area and elevated transaminase. If you catch a cold and have lingering symptoms, you should diagnose and treat it as soon as possible.
Infectious fever is mainly caused by bacteria, viruses or other pathogenic microorganisms, such as respiratory diseases: upper respiratory tract infection, bronchitis, pneumonia, tuberculosis and so on. Diseases of digestive system: dysentery, typhoid fever, paratyphoid fever, hepatitis, etc. Fever with rash diseases: measles, rubella, etc. Urinary system diseases: renal pelvis, nephritis, etc. Central nervous system diseases: epidemic cerebrospinal meningitis, Japanese encephalitis, tuberculous meningitis, etc. Systemic infection: septicemia; Malaria, infectious mononucleosis, etc.
Acute upper respiratory tract infection is usually called "upper respiratory tract infection", including rhinitis, pharyngitis, tonsillitis, tracheitis and so on. More than 90% of infections are caused by viruses, such as rhinovirus, influenza virus, parainfluenza virus, adenovirus,
Cell virus, etc. Symptoms include stuffy nose and fever. Fever sometimes disappears within a few hours, and some will last for more than a week.
Many diseases can cause low fever. Fever is a symptom, and diseases such as rheumatism, tuberculosis, chronic inflammation and low immunity can cause persistent low-grade fever; Long-term psychological stress and emotional instability can also cause disorders of the body temperature center, leading to unexplained persistent low fever. Problems in any system of the body may lead to persistent low fever. What is the cause of low fever? Routine tests such as blood, urine and stool are difficult to find. Some low-grade fever caused by bacterial infection can only be found by bacterial culture.
Unknown low fever, no drug abuse. Fever is one of the body's responses to disease. Taking antipyretics for patients with low fever is not conducive to the treatment of the disease. Abuse of antipyretics can also lead to leukopenia and aplastic anemia. Only when the body temperature is higher than 38℃ should we consider using antipyretics.