Tuberculosis: What you need to know about this infectious disease.

What Is Tuberculosis?

Tuberculosis (TB) is an infectious disease caused by a bacterium called Mycobacterium tuberculosis. Although it primarily affects the lungs, it can also impact other parts of the body, including the kidneys, spine, and brain. Tuberculosis remains a significant global health concern, but with early diagnosis and proper treatment, it is curable.

How Is Tuberculosis spread?

Tuberculosis spreads through the air when a person with active pulmonary TB coughs, sneezes, speaks, or sings. Tiny droplets containing the bacteria can be inhaled by people nearby.

It is important to note that TB is not spread through handshakes, hugging, sharing food, or touching common surfaces.

Symptoms of Tuberculosis

Symptoms may develop gradually and can vary depending on the affected area of the body. Common symptoms include:

• Persistent cough lasting three weeks or longer

• Chest pain

• Coughing up blood or mucus

• Fatigue and weakness

• Unexplained weight loss

• Loss of appetite

• Fever

• Night sweats

If you experience any of these symptoms, it is important to seek medical attention for proper evaluation and testing.

Latent TB vs. Active TB

There are two main forms of tuberculosis infection:

Latent Tuberculosis Infection (LTBI)

In latent TB, the bacteria remain in the body but are inactive. Individuals with latent TB do not feel sick, do not have symptoms, and cannot spread the disease to others. However, the infection can become active in the future if left untreated.

Active Tuberculosis Disease

Active TB occurs when the bacteria multiply and cause symptoms. At this stage, the disease can be contagious and requires immediate medical treatment.

Risk Factors

Certain individuals are at a higher risk of developing tuberculosis, including:

• People with weakened immune systems

• Individuals living with HIV/AIDS

• Patients with diabetes

• Smokers

• People who have close contact with someone with active TB

• Individuals living or working in crowded environments

• Those with poor nutrition or chronic health conditions

Diagnosis

Healthcare providers use several methods to diagnose tuberculosis, including:

• Tuberculin skin tests (TB skin tests)

• TB blood tests

• Chest X-rays

• Sputum (mucus) testing

Early diagnosis plays a crucial role in preventing complications and reducing the spread of the disease.

Treatment

Tuberculosis is typically treated with a combination of antibiotics taken over several months. Completing the full course of treatment is essential, even if symptoms improve before the medication is finished.

Stopping treatment too early can lead to drug-resistant TB, which is more difficult to treat.

Prevention

You can help reduce the risk of tuberculosis by:

• Seeking medical care if symptoms develop

• Completing prescribed treatment plans

• Practicing good respiratory hygiene

• Improving ventilation in indoor spaces

• Undergoing TB screening when recommended

• Following public health guidance if exposed to someone with active TB

Tuberculosis is a serious but preventable and treatable disease. Understanding its symptoms, risk factors, and treatment options can help protect both individual and community health. Early detection and proper medical care are key to successful outcomes.

If you have concerns about tuberculosis or believe you may have been exposed to the disease, contact your healthcare provider for evaluation and guidance. Your health and well-being are our top priorities.