Is it inevitable that I will be infected if I come into contact with a tuberculosis patient?

Exposure to a person with tuberculosis does not always mean that you will get tuberculosis. It mainly depends on several factors:

Clause. 1. It depends on whether the sputum of the tuberculosis patient you come into contact with has tuberculosis bacteria, and it is generally believed that those who are positive for sputum smear or sputum culture are carriers, and those who are exposed to sputum carriers are more likely to be infected with tuberculosis. The rest of the population is not associated with tuberculosis bacteria (called "negative tuberculosis"), and they are almost infectious.

Clause. Second, even if the patient's sputum contains tuberculosis bacteria, it also depends on the amount of tuberculosis bacteria you inhale when you are in contact; If you are near a sick person, or if they are coughing or sneezing, you will inhale more TB bacteria, which can be easily contracted by you, so this should be avoided.

When a person with tuberculosis coughs or sneezes, he or she should turn his head as much as possible and cover his mouth and nose with his hands or a tissue, to avoid infecting others.

Clause. 3. Even if you have inhaled a large amount of tuberculosis bacteria, it also depends on the level of your own resistance; If your resistance is good enough, you can inhibit the reproduction of tuberculosis bacteria in the body and kill them, while if the resistance is not high, the tuberculosis bacteria will multiply and grow in large numbers in the body, causing damage to the lungs and forming tuberculosis.

Therefore, some people with low immunity, such as the elderly, children, patients taking immunosuppressants, AIDS patients with low immunity, cancer patients receiving chemotherapy, etc., are more likely to develop tuberculosis.

Therefore, try not to have close contact with tuberculosis patients, especially those who are infectious; Frequently open windows for ventilation in rooms where you live, study, and work to reduce the concentration of tuberculosis bacteria in the air; Paying attention to nutrition, exercising, and improving your own immunity can help you avoid getting infected with tuberculosis.

Whether tuberculosis is contagious or not depends on whether it is open tuberculosis. Open TB refers to the excretion of Mycobacterium tuberculosis bacteria from the lungs into the air through the respiratory tract, resulting in the sputum being positive for the Mycobacterium tuberculosis bacillus, and the sputum being spit out is transmitted to others through the respiratory tract. Therefore, it is necessary to always check the sputum of the patient for tuberculosis bacilli to determine whether the patient is infected or infected.

In addition to anti-tuberculosis**, the sputum spit out by the patient should be placed in a closed container in time for centralized destruction, and the management of sputum is particularly important in the prevention and control of tuberculosis. Chengdu Xinhua.

Healthy people who have been exposed to tuberculosis patients do not necessarily develop tuberculosis after they have developed tuberculosis infection. Whether a person is infected with tuberculosis or not is mainly affected by the number and virulence of the infected tuberculosis bacteria and the level of body resistance at that time.

Not every person with TB is contagious at any time during their illness. Tuberculosis patients are most contagious when tuberculosis develops, worsens or cavitates, and the tuberculosis bacteria in the lesions multiply and are excreted through the bronchial tubes. If the sputum culture is negative after a period of time (around 3 months) after the standard antituberculosis **, then there is no contagion!

Is tuberculosis contagious? The doctor bluntly said: except for tuberculosis, it is generally not contagious.

Pulmonary tuberculosis. of susceptible populations are:

1.Diabetes, silicosis.

Tumor. Organ transplantation. , long-term use of immunosuppressive drugs or corticosteroids are prone to tuberculosis 2Living in poverty, poor living conditions, and.

Malnutrition. is in an economically backward society.

Crowd. Causes of the high incidence of tuberculosis.

3.Except. Pathogen.

environmental and socio-economic factors in addition to the host.

Genetic factors also play an important role in the occurrence and development of tuberculosis, and differences in individual susceptibility or resistance to tuberculosis are related to certain host genes.

4.Not all.

Infection. Contacts.

can be. Infected, been.

Infected person. It doesn't always have to be sick.

It is possible to be infected, but it will not be absolute, tuberculosis is mainly transmitted through the respiratory tract, if the patient coughs up the germs into the air by coughing or coughing up sputum, the person next to him will inhale it and it will be infected.

If this friend is in the active stage of tuberculosis, it is also possible to be infected, but it is not very absolute, if you have better physical fitness and strong immunity, then the risk of infection is relatively low.

It may be infected, but this is not necessarily a thing, it is mainly related to your own resistance and immunity.

Tuberculosis does not necessarily occur in healthy people who are infected with TB bacteria. The onset of tuberculosis is mainly affected by two factors, namely the virulence of infected tuberculosis bacteria and the level of body resistance. The vast majority of people who are infected with TB bacteria for the first time do not develop TB, but about 10 people still develop TB at any time in their lives.

Infants, young children, adolescents, the elderly, pneumoconiosis, diabetic patients, people who have undergone gastrectomy or who have been using immunization for a long time are more likely to develop the disease because of their reduced immunity. HIV-infected people are highly susceptible to tuberculosis once infected with tuberculosis bacteria due to immune deficiency.

Therefore, when you have a tuberculosis patient around you, you must first understand whether he or she is a bacterial patient and whether he or she has been treated with anti-tuberculosis chemotherapy. If you have a negative sputum test or a positive patient who has undergone chemotherapy, it is very contagious and you do not have to worry about infection. If it is a patient who has not been discharged, he should be urged to go to the tuberculosis prevention and control institution as soon as possible to standardize the disease and eliminate the infectivity as soon as possible.

The main symptoms of tuberculosis are cough, sputum production, hemoptysis, chest pain, fatigue, loss of appetite, low-grade fever, night sweats and other symptoms. Therefore, after a tuberculosis patient is found in a family or colleague, once the person in close contact with him has the above symptoms for more than 3 weeks and has not recovered, he should go to a professional tuberculosis prevention and control institution for examination in time, so as to be diagnosed as soon as possible and as soon as possible**. Don't worry if you don't find anything out of the ordinary.

Tuberculosis is a respiratory infection that can only be transmitted if you come into contact with someone who is infectious, and if you are in good health, you are less likely to be infected.