Is tuberculosis contagious? What are the channels of contagion?

Analysis: Tuberculosis is contagious, but the point of concern is that the transmission route is mainly respiratory droplet transmission. Guidance:

Hello, tuberculosis is contagious, but the point of caution is that the transmission route is mainly respiratory droplet transmission. Then there is the close contact in life. Attention points are generally fine.

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Disease analysis: Pulmonary tuberculosis is Mycobacterium tuberculosis infection, Mycobacterium tuberculosis can survive in dry sputum for 6-8 months, if adhered to the dust, report for 8-10 days Guidance: The transmission of pulmonary tuberculosis is the transmission of Mycobacterium tuberculosis, through droplets or dust, Mycobacterium tuberculosis can easily enter the lungs through the respiratory tract, so there are many lung infections.

Prophylaxis, BCG vaccination. **Available drugs, isoniazid, rifampicin, ethambutol and other drugs View the original post

Analysis: Hello: Tuberculosis is contagious, especially in patients with bacteria, and it is mainly transmitted through the respiratory tract.

However, exposure to a tuberculosis patient does not necessarily lead to infection. Guidance: Therefore, in this case, it is recommended that it is best to avoid contact with tuberculosis patients, if you have contact, you can choose to wear a mask, you are also immune, and the possibility of contact with one or two infections is still very low, don't worry too much.

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Analysis: Hello, tuberculosis is a contagious disease. Guidance: In this case, tuberculosis is mainly transmitted through the respiratory tract. View the original post

It will be contagious, through saliva, together with eating and drinking.

Tuberculosis (TB) is a chronic respiratory infection that is mainly spread to others through droplets that are ejected when a sick person coughs, sneezes or talks loudly.

Tuberculosis is an infectious disease caused by a bacterium called tuberculosis. However, only tuberculosis patients who can detect tuberculosis bacteria in their sputum are infectious.

When infectious tuberculosis patients spray tuberculosis bacteria out of the body through the nasal cavity and mouth by coughing, sneezing, talking loudly, etc., forming aerosols (or droplets) in the air, the larger droplets quickly fall to the ground, and the smaller droplets quickly evaporate into microdroplet nuclei containing tuberculosis bacteria, and are suspended in the air for a long time, if the air is not circulated, the microdroplet nuclei containing bacteria are inhaled into the alveoli by healthy people, which can cause infection.

The degree of contagiousness of tuberculosis is related to the severity of the infectious patient's illness, the amount of bacteria excreted, the frequency of coughing, the ventilation of the room, and the closeness of contacts and immunity. Cough infection is the main mode of transmission of tuberculosis, but not everyone who is exposed to tuberculosis bacteria will be infected with tuberculosis bacteria or develop tuberculosis. Epidemiological studies of tuberculosis have shown that a single patient with infectious tuberculosis can infect 10 to 15 people with tuberculosis bacteria in a year.

Generally speaking, tuberculosis infection does not necessarily occur in all cases, and tuberculosis can only develop when the body's resistance is reduced. People infected with TB bacteria have a lifetime probability of developing TB about 10 %.

Tuberculosis is generally transmitted through the respiratory tract, and if the human body is infected with tuberculosis bacteria, if the immunity is strong, the tuberculosis bacteria will hide in a dormant form, and the incubation period can be decades later, so even if they are infected, they may not get sick.

Patients with tuberculosis parabacterial bacteria spread into the air through the dried sputum of the spit;

Patients with tuberculosis side-by-side bacteria speak loudly and are carried into the air through droplets;