Influenza


How many days does the flu fever last?
Flu fever generally lasts for 3-5 days. Flu refers to the condition characterized by sore throat, cough, and fever after the human body is infected with the influenza virus. It is called influenza, which is a symptom that appears after a viral infection. In most cases, it is self-limiting, meaning it can be treated with or without medication. The fever from influenza generally lasts about 3-5 days, and usually, after five days, the body temperature begins to decrease, and even returns to normal. Around 7-10 days, the patient's condition can naturally be completely alleviated. Therefore, influenza is not a severe disease, and as long as medication is used properly, some cases might see the fever subside within 3-5 days.


What department should I go to for the flu?
Influenza refers to a disease that manifests as cough, fever, and sore throat following human infection by the influenza virus. It is commonly known as the flu or influenza. In addition to respiratory symptoms, the flu may also present with digestive symptoms such as nausea, vomiting, abdominal pain, and diarrhea. Therefore, for flu treatment, one can visit the respiratory department. Of course, in cases of severe symptoms such as high fever, chest tightness, and fatigue, one may also visit the emergency department. However, if the initial diagnosis is predominantly digestive symptoms, it's possible that the gastroenterology department will refer the patient back to the respiratory department for treatment. This requires careful differentiation and exclusion by the doctor before making a diagnosis, so visiting the respiratory or emergency department for flu is appropriate.


Can influenza-specific drugs prevent influenza?
Influenza is a highly contagious respiratory disease caused by the invasion of the respiratory tract by influenza virus. Clinically, it can be divided into type A influenza and type B influenza based on the specific type of virus infection. Clinically, there are actually no specific drugs for influenza. The key is to provide appropriate antiviral medications for symptomatic treatment. For example, if a patient is infected with the influenza virus, commonly used treatments include traditional Chinese medicines or antiviral drugs, which can effectively alleviate the uncomfortable symptoms caused by the influenza virus. Regardless of which type of influenza virus the patient has, the medications used in clinical treatment cannot prevent influenza. Therefore, we recommend avoiding going out as much as possible during the peak season of influenza. If going out is necessary, it is important to take precautions, as influenza is transmitted through respiratory droplets. Wearing a mask when going outside can reduce the chances of getting infected with influenza.


Does the flu cause vomiting?
Influenza refers to a group of diseases characterized by cough, sore throat, and fever following upper respiratory tract infection by influenza virus. However, influenza has its peculiarities. Apart from respiratory symptoms, influenza can also present with nausea, vomiting, and even abdominal pain and diarrhea. Thus, it is entirely possible for influenza patients to experience vomiting. However, due to some doctors' lack of understanding of influenza, the vomiting caused by influenza is often mistaken for acute gastroenteritis or treated as acute gastritis. This can lead to inappropriate medication use, resulting in prolonged illness. Therefore, if a patient has fever, nausea, vomiting, or sore throat, it is crucial to promptly consider the possibility of influenza to avoid delaying the diagnosis and treatment.


The difference between influenza and the common cold
Influenza, or the flu, is an epidemic caused by the influenza virus, often characterized by severe systemic symptoms such as chills, high fever, and body aches. However, the symptoms related to the nasal pharynx are relatively mild, such as light sneezing, runny nose, and nasal congestion. The common cold, often referred to as a cold or rhinitis, is also caused by viral infection and can be caused by various viruses such as rhinovirus, coronavirus, adenovirus, influenza virus, and parainfluenza virus. The general systemic symptoms of the common cold are relatively mild, such as fever, headache, and chills. Symptoms related to the ears, nose, and throat are more pronounced, including distinct sneezing, nasal congestion, runny nose, and throat discomfort.


Can the flu cause diarrhea?
Influenza can cause diarrhea, but this is a minority occurrence. Influenza is a disease that appears after the respiratory system of a human body gets infected with the influenza virus. After infecting the human body, influenza primarily manifests symptoms like coughing, sore throat, and fever. However, some patients may develop gastrointestinal symptoms such as diarrhea, nausea, and vomiting after being infected with influenza. This situation is related to viral infection, not the commonly thought stomach flu or food poisoning. Some patients may also experience joint pain and a decrease in appetite. If a patient experiences diarrhea accompanied by respiratory infection symptoms and has tested positive for influenza antibodies, it is necessary to promptly use antiviral drugs for influenza. However, many doctors who do not have such experience in diagnosing influenza might mistake the nausea and diarrhea caused by influenza for gastroenteritis, leading to a delay in proper treatment. Therefore, if one has respiratory symptoms accompanied by gastrointestinal symptoms, the possibility of influenza should be considered.


How to get a flu vaccine?
Influenza vaccines are mainly produced to prevent epidemic influenza and are currently available in three main types: Type A, B, and C. The target population for influenza vaccine administration primarily includes the elderly, preschool children, and patients with chronic underlying diseases, who are more suitable for vaccination. For children under three years old, the influenza vaccine should be administered twice, as it is administered via muscle injection and cannot be used intravenously. For this age group, the two doses should be spaced at least four weeks apart. For children over three years old and adults, an annual vaccination is sufficient. The optimal time for influenza vaccination is usually in September and October, as influenza tends to outbreak in winter and spring, so vaccinating during these months can greatly prevent influenza.


How is avian flu treated?
First, patients suspected or confirmed with avian influenza should be isolated and treated as early as possible. Second, antiviral medications such as oseltamivir and zanamivir should be taken within forty-eight hours of onset, the sooner the better. Third, physical cooling or antipyretic drugs should be administered during high fever, and medications like Compound Licorice Tablets and Ambroxol Hydrochloride can be used to relieve severe cough and phlegm. Oxygen therapy using nasal cannulas or masks may be administered depending on the degree of hypoxia. Fourth, strengthen supportive treatment, maintain internal environment stability, and prevent complications.


What are the symptoms of flu?
Influenza, commonly known as the flu, is an acute respiratory infectious disease caused by the influenza virus. What are the symptoms after contracting the flu? Typically, the onset of influenza is quite sudden, and symptoms such as chills, high fever, headache, dizziness, body aches, and fatigue can appear quickly. Generally, the symptoms in the nasopharyngeal area are relatively mild and prolonged, and may include sore throat, runny nose, tearing, coughing, etc. After contracting the flu, it is important to actively cooperate with medical treatment and also to ensure isolation to prevent infecting others.


Routes of influenza transmission
Influenza, also known as the flu, is a disease caused by infection of the upper respiratory tract with the influenza virus. It is characterized mainly by sore throat, cough, and fever, and some patients may also experience nausea, vomiting, and diarrhea. The primary mode of transmission of influenza is through droplets, which occur when an infected person sneezes or coughs, and their secretions, such as nasal discharge, are inhaled by others. Additionally, the virus can be transmitted through the digestive tract and mucous membranes of the skin. If a healthy person comes into contact with the secretions of an infected person, such as through skin contact or orally, they may also be infected. Therefore, it is crucial to isolate from those infected with the flu.