Viral pneumonia is a very common acute illness, what are the causes of viral pneumonia?

Viral pneumonia is inflammation of the lungs caused by downward transmission of a viral infection of the upper respiratory tract. It can occur in both immunocompetent and suppressed young adults and children. The disease usually occurs during the spring and winter festivals.

Close contact with severe cases can lead to sporadic outbreaks. It is important to emphasize here that infants, the elderly, pregnant women, or people with chronic heart and lung diseases can all lead to death if the condition is severe.

Infection begins in the upper respiratory tract and is accompanied by extensive destruction of the airway epithelium, mucosal ulceration, and fibrin membrane coating. Airway defenses are weakened, making it easy to cause bacterial infections. Immunocompromised people can also be infected with fungi, protozoa, and especially Pneumocystis carinii.

Isolated viral pneumonia causes interstitial pneumonia with a large monocytic infiltrate of the alveolar septum. Alveolar edema is covered by a transparent membrane containing plasma proteins and fibrin, thickening the distance between the alveolar membranes. Pneumonia can be focal, extensive, or even consolidated.

Viral inclusions are found in alveolar cells and macrophages. There is exudate in the bronchioles. Pulmonary fibrosis or even nodular calcifications may persist after the lesion has been absorbed.

The main type of pneumonia.

1.Bacterial pneumonia: is the most common type of pneumonia, accounting for 80% of pneumonia, and its causative agents include gram-positive bacilli and gram-negative bacilli.

2.Viral pneumonia: caused by adenovirus, respiratory Taiwan virus, influenza virus, measles virus, herpes simplex virus, etc.

3.Fungal pneumonia: pneumonia caused by the invasion of fungi such as Candida albicans, Aspergillus, Actinobacillus and other fungi into the lungs.

4.Mycoplasma pneumonia: pneumonia caused by infection with Mycoplasma pneumoniae.

5.Pneumonia caused by other pathogens: normal people are susceptible to infection with rickettsia, Chlamydia pneumoniae, Toxoplasma gondii, and parasites (such as Pneumocystis cariniii, Pneumocystis cariniii, and lung flukes), while AIDS patients are susceptible to Pneumocystis carinii and Toxoplasma gondii.

6.Other non-infectious factors: chemical pneumonitis, hypersensitivity pneumonitis, radiation pneumonitis.

Lung infection is the initial reaction to pneumonia. If you have a lung infection, seek medical attention. The longer the disease drags on, the more severe it becomes.

Lung infections are more convenient and require fewer medications than pneumonia. The symptoms of lung infection or pneumonia caused by different pathogens are basically the same, but the methods are very different. Pneumonia or lung infection cannot be judged by yourself, you should follow the doctor's advice and actively cooperate with the doctor**.

Viral pneumonia is inflammation of the lungs caused by a viral infection of the upper respiratory tract that spreads downward. It is more common in winter and spring, and can be sporadic or outbreak-out, and the main clinical manifestations are fever, body aches, and a small number of dyspnea, pulmonary infiltrates. Viral pneumonia is related to the virulence of the virus, the route of infection, and the age and immune status of the host.

The viruses that cause viral pneumonia are common in the epidemic ** virus, and the others are parainfluenza virus, cytomegalovirus, adenovirus, rhinovirus, coronavirus, etc.

Irregular diet, and often smoking, drinking, and eating some non-nutritious food, staying up late every day, etc., are all causes of viral pneumonia.

There are many causes of viral pneumonia, which are generally lung inflammation induced by viral infection, and the causes include drug factors, cold viruses, viral infections, bacterial infections, and age. In addition, HIV can also induce viral pneumonia. So find out in time**.

What is the novel coronavirus?

The 2019 novel coronavirus, known as "2019-NCOV", was discovered as a result of the 2019 Wuhan viral pneumonia case and was named by the World Health Organization on January 12, 2020. Coronaviruses are a large family of viruses known to cause colds as well as more severe illnesses such as Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). Since December 2019, Wuhan City, Hubei Province, has continued to carry out surveillance of influenza and related diseases, and has found a number of cases of viral pneumonia, all of which were diagnosed as viral pneumonia and lung infection.

What are the symptoms of the new coronavirus?

The early symptoms of the novel coronavirus infection are similar to the cold symptoms caused by the general viral infection, mainly manifested as tiredness, fatigue, muscle aches, and a few patients will show gastrointestinal reactions, such as abdominal pain and diarrhea.

As the disease progresses, the patient will develop symptoms of fever, and the fever degree will be above the degree. Respiratory symptoms may also occur, including cough and sore throat.

As the symptoms worsen, patients may experience severe symptoms such as breathlessness, chest tightness, shortness of breath, and even respiratory distress. Imaging tests will reveal ground-glass changes in the lungs. In severe cases, sepsis, septic shock, coagulopathy, and renal failure may also occur.

At present, there is no specific ** method for the disease caused by the novel coronavirus. However, many symptoms are manageable and need to be treated clinically**. In addition, adjunctive care for infected people can be very effective.

How to prevent the novel coronavirus?

There is no effective vaccine prevention method for the new coronavirus, and personal protection is the most practical way, including:

Maintain basic hand and respiratory hygiene and adhere to safe eating habits.

Avoid close contact with anyone who shows symptoms of respiratory illness (such as coughing and sneezing) as much as possible.

Drink plenty of water and take rest to boost your immunity.

Maintain ventilation in the living and working environment.

What should I do if I suspect that I have the new coronavirus?

If you suspect that you are suspected of being infected with the new coronavirus, you should isolate yourself from your family and friends as soon as possible, and do not go out to avoid cross-infection of the virus.

When there are further abnormal clinical manifestations such as fever (fever degree) and cough, it is necessary to report to the local disease prevention and control agency as soon as possible, so as to better control the spread of the new coronavirus.

Under the guidance of the local disease prevention and control agency, go to the designated medical institutions for investigation, diagnosis and treatment. You must remain under medical observation for 14 days, and if no other symptoms occur during the 14-day period, you can be released from isolation.

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Pneumonia caused by the novel coronavirus is a disease caused by infection with the new coronavirus.

The novel coronavirus (NCOV) is a novel coronavirus that has not been previously detected in humans, and the WHO has recently named it 2019-NCOV.

It is currently found that the age of patients is concentrated in 40-60 years. A small number of cases are family clusters.

The clinical manifestations are fever and fatigue, and the respiratory symptoms are mainly dry cough, and dyspnea gradually appears.

There is currently no vaccine or effective antiviral drug against the novel coronavirus. If similar manifestations occur, you should go to the hospital for examination and ** in time.

In severe cases, acute respiratory distress syndrome, septic shock, metabolic acidosis that is difficult to correct, and coagulopathy can be life-threatening.

Early detection and early **, most patients have a good prognosis, and a few patients are in critical condition with a certain mortality rate.

Viral pneumonia is an inflammation of the lung interstitium and parenchyma caused by the invasion of the respiratory epithelium and alveolar epithelial cells by viruses, which mostly occurs in winter and spring, and can be affected by individuals with normal or suppressed immune function. Common viruses that cause viral pneumonia are influenza A and B viruses, adenovirus, parainfluenza virus, respiratory syncytial virus, and coronavirus. Viral pneumonia is mainly inhaled ** infection, through person-to-person droplet infection, mainly caused by the downward spread of viral infection of the upper respiratory tract, often accompanied by trachea, bronchitis, occasionally mucosal contact infection, respiratory syncytial virus infection through dust, organ transplantation cases can be transmitted through multiple blood transfusions or even the viral blood group caused by donor organs, usually not accompanied by trachea, bronchitis.

Viral hepatitis is mainly caused by viral infections, which are divided into several common types: hepatitis A, hepatitis B, hepatitis C, hepatitis D, and hepatitis E, which are caused by infection with hepatitis A virus, hepatitis B virus, hepatitis C virus, hepatitis D virus, and hepatitis E virus, respectively. For example, hepatitis A virus is generally transmitted through the digestive tract, while hepatitis B virus is generally transmitted through blood, mother-to-child and sexual contact. If you want to prevent viral hepatitis infection, you should pay attention to dietary hygiene and do a good job of protection, and you can inject viral hepatitis vaccine for protection.

Patients with viral pneumonia should generally pay attention to rest, do not stay up late, or get drenched in the rain, or overwork, pay attention to the ventilation of the room, strengthen nutrition, drink more water, try to eat small and frequent meals, eat easily digestible food, and avoid eating greasy, spicy, and indigestible food. In terms of medication, for patients with dyspnea, oxygen may be required**. For conditions such as cardiopulmonary failure, it is necessary to treat the symptoms in time, and if necessary, mechanical ventilation may be used, that is, ventilators.

The main reason is that some viruses have entered the lungs and caused such a situation, which will cause certain harm, and the danger is also relatively large, and surgery or drugs are also required to control it.

The cause of viral pneumonia is because the child's own immunity is relatively low, the immunity is weak, and he is infected with some cold viruses.

Viral pneumonia is inflammation of the lungs due to viral infections, such as influenza viruses, enteroviruses, and more.

The most common form of viral pneumonia is infection with a variety of viruses.

Upper respiratory tract viruses are the main viruses that cause viral pneumonia, such as influenza virus (divided into two types A and B), parainfluenza virus, respiratory syncytial virus, cytomegalovirus, water core ruler Shenpox-zoster virus and coronavirus, etc., SARS in 2003 and the new crown epidemic in recent years are caused by coronaviruses, so we should pay attention to viral pneumonia.

Second, some enteric viruses, such as coxsackievirus and echovirus, can also be relegated to cause them.

Let's laugh Answer]: e

Test site] Pathological features of pneumonia.

Analysis] lobar pneumonia is a slippery fibrinitis; Viral pneumonia is interstitial inflammation.

Answer]: CA, the pathological type of lobar pneumonia is fibrinitis in the alveolar space. B, the pathological type of lobular pneumonia is purulent inflammation of the alveolar cavity.

CD, Mycoplasma pneumoniae pneumonia and viral pneumonia are typical interstitial pneumonia, which is manifested by microscopic widening of the alveolar first septum, vasodilation and congestion, interstitial edema and lymphocyte and monocyte infiltration, and there is generally no exudate in the alveolar cavity, and there is no formation of bud swelling in flesh.

Answer]: According to the nature of the lesion, pneumonia can be divided into serous pneumonia, fibrinous pneumonia, purulent pneumonia, hemorrhagic pneumonia, granulomatous pneumonia and caseous pneumonia, and according to the part of the inflammation involved in the lungs, it can be divided into alveolar pneumonia and interstitial Sakura pneumonia, and according to the extent of involvement, it can be divided into lobar pneumonia, lobular pneumonia and segmental pneumonia. Viral pneumonia is interstitial pneumonia.

Answer]: A bacteria, annihilation virus, mycoplasma orange pure, chlamydia, legionella and other pathogenic microorganisms can cause pneumonia, among which bacterial pneumonia is the most common.