Home
Articles
Q&A

What virus causes influenza?

Feb 10, 2025 Source: Cainiu Health
Dr. Ren Yi
Introduction
Influenza, commonly known as the flu, is caused by the influenza virus, which can be categorized into four types: influenza A, influenza B, influenza C, and influenza D. To effectively prevent influenza, it is recommended to receive the annual flu vaccine 1 to 2 months before the onset of the flu season.

　　Influenza, commonly known as the flu, is caused by the influenza virus. The influenza virus can be classified into four types: influenza A virus, influenza B virus, influenza C virus, and influenza D virus. If you have any concerns, it is recommended to seek medical advice in advance. Detailed analysis is as follows:

　　1. Influenza A virus: This type of influenza virus mutates easily and often causes pandemics. It is characterized by rapid transmission, strong infectivity, and wide-ranging spread. After infection with the influenza A virus, patients may experience symptoms such as high fever, chills, headache, dizziness, and fatigue.

　　2. Influenza B virus: Influenza B virus can also cause the flu and is categorized as an acute respiratory infectious disease. Influenza B has a sudden onset and may cause symptoms including high fever, headache, fatigue, body aches, and conjunctivitis, but upper respiratory catarrhal symptoms are generally mild. Some patients can recover through rest or treatment.

　　3. Influenza C virus: Influenza C virus causes influenza C and typically results in mild or subclinical upper respiratory infections, such as fever, fatigue, muscle pain, and headache. Influenza C rarely causes epidemics and symptoms are relatively mild.

　　4. Influenza D virus: The influenza D virus has a relatively stable genome and mutates slowly. Its transmissibility and ability to invade the human immune system are relatively limited. Therefore, influenza D virus rarely infects humans and has minimal direct impact on human health.

　　To effectively prevent influenza, it is recommended to receive the annual flu vaccine 1-2 months before the flu season begins. If diagnosed with influenza, patients can, under a doctor's guidance, take medications such as Lianhua Qingwen capsules, Ganmaoling granules, or oseltamivir phosphate capsules to alleviate symptoms and shorten the duration of illness.

Related Articles

View All
What intravenous fluid is best for deficiency of qi and blood?
When intravenous infusion is needed to regulate deficiency of qi and blood, Shengmai Injection, Huangqi Injection, Danggui Injection, Compound Ejiao Syrup Injection, or Bazhen Injection may generally be selected. The main components of Shengmai Injection are red ginseng and Ophiopogon japonicus (Maidong), which can tonify qi and nourish yin, as well as promote body fluid production and nourish blood. It is suitable for individuals with deficiency of both qi and yin. This injection can alleviate symptoms such as fatigue, dizziness, and dry mouth by replenishing vital energy and nourishing yin fluids.
avatar
Dr. Sun Lianqing
View Full Answer
What does it mean when yellow fluid comes out during cupping?
In general, yellow fluid discharge after cupping may be caused by factors such as exudation of skin tissue fluid, excessive temperature inside the cup, eczema, seborrheic dermatitis, or impaired lymphatic return. Appropriate measures can be taken based on the specific situation to improve the condition. During routine cupping, it's important to control the temperature and duration, and treatment should be performed at a qualified facility. If yellow fluid is accompanied by redness, swelling, or increased pain, cupping should be stopped immediately and medical attention sought. Keep the skin clean.
avatar
Dr. Sun Lianqing
View Full Answer
What does it mean when cupping causes bleeding or fluid discharge?
Cupping-induced discharge of bloody fluid primarily results from the rupture of local capillaries due to negative pressure, leading to a mixture of blood and tissue fluid oozing out. A small amount of light red fluid is usually a normal physiological response; however, if there is excessive bleeding, dark red blood, or pus, it may indicate local inflammation, blood stasis, or skin damage. In cases of abnormal bleeding, prompt medical evaluation is necessary.
avatar
Dr. Sun Lianqing
View Full Answer
What causes facial flushing and heat?
Facial flushing and heat may be caused by emotional excitement, changes in ambient temperature, rosacea, contact dermatitis, hyperthyroidism, or other reasons. It is recommended to seek medical attention promptly, identify the underlying cause, and receive symptomatic treatment under a doctor's guidance. In daily life, pay attention to facial care, choose gentle skincare products, and avoid excessive cleansing. When going outdoors, apply sunscreen properly to reduce skin irritation from ultraviolet radiation.
avatar
Dr. Liu Wenmin
View Full Answer
Why does a woman's body alternately feel cold and hot, and what should be done about it?
A woman experiencing alternating feelings of cold and heat may be due to environmental temperature changes, emotional fluctuations, hormonal imbalances, menopausal syndrome, or thyroid dysfunction. Symptoms can be improved by adjusting the environment, stabilizing emotions, regulating sleep patterns, or medication. If symptoms occur frequently or are accompanied by fatigue or menstrual irregularities, prompt medical evaluation is recommended.
avatar
Dr. Zhang Lu
View Full Answer
Can I eat pears if I'm allergic to the flu vaccine?
Allergic reactions to the influenza vaccine stem from immune responses to components such as proteins and adjuvants in the vaccine. Pears, however, mainly contain water, vitamins, and carbohydrates; their composition is mild and unlikely to cause cross-reactive allergies with the vaccine. Consuming pears in moderation during an allergic reaction can help replenish fluids to ease throat discomfort and provide essential nutrients, without adversely affecting recovery.
avatar
Dr. Liu Wenmin
View Full Answer
Is acid reflux due to cold stomach or stomach fire?
Reflux of sour fluid may be caused by either cold in the stomach or excessive stomach heat; the specific type must be determined based on accompanying symptoms. Reflux due to stomach cold is usually caused by insufficient yang energy in the spleen and stomach, leading to failure to control gastric acid, which then rises upward. It is commonly accompanied by symptoms such as regurgitation of clear, sour fluid, cold pain in the stomach, preference for warmth and pressure, poor appetite, and worsening of symptoms after consuming raw or cold foods. The tongue coating is typically white and greasy.
avatar
Dr. Huang Yuhong
View Full Answer
What should I do if I experience coughing after inhaling salmeterol fluticasone powder?
Coughing after inhaling salmeterol fluticasone powder can be managed by ensuring proper inhalation technique, rinsing the mouth promptly after inhalation, adjusting the timing of medication, alleviating airway irritation, and monitoring symptom changes. It is often related to airway adaptation, incorrect inhaler use, or mild irritation. If coughing is severe and persists for more than one week, or is accompanied by wheezing or shortness of breath, prompt medical attention is recommended.
avatar
Dr. Ren Yi
View Full Answer
彩牛养生

Your trusted source for health information and wellness guidance.

Quick Links

Resources

Connect

© 2024 HealthPortal. All rights reserved.