27/09/2023
What Do You Know About Tuberculosis?
Tuberculosis (TB) is a potentially serious infectious disease caused by the bacterium Mycobacterium tuberculosis. It primarily affects the lungs but can also spread to other parts of the body, such as the kidneys, spine, or brain. Tuberculosis is a global health concern, with millions of new cases and deaths reported each year. In this article, we aim to educate people about TB, including its causes, symptoms, modes of transmission, diagnosis, and treatment options.
Causes:
TB is caused by an airborne bacteria that spreads from person to person through the air. When an infected individual sneezes, coughs, talks, or spits, tiny droplets containing the bacteria are released into the air. If a healthy person inhales these droplets, they may become infected. It's important to note that not everyone infected with TB bacteria becomes sick, as the immune system can sometimes prevent the bacteria from causing active disease.
Symptoms:
The symptoms of TB can vary depending on the organs affected. In pulmonary TB, the most common form, of symptoms include a persistent cough (that may produce blood), chest pain, fatigue, weight loss, chills, and night sweats. Other forms of TB, such as extrapulmonary TB, may present with symptoms specific to the affected organs, such as back pain for spinal TB or blood in urine for kidney TB.
Transmission:
TB is primarily transmitted through the air when an infected person coughs, sneezes or speaks. However, close and prolonged contact with the infected individual is usually necessary for transmission to occur. Crowded spaces with poor ventilation, such as hospitals, prisons, and homeless shelters, increase the risk of transmission. It's worth noting that TB is not easily spread through casual contact, like handshakes or sharing utensils.
Diagnosis:
If TB is suspected, medical professionals conduct various tests to confirm the diagnosis. These include a chest X-ray, sputum culture (a lab test to identify the bacteria in the phlegm), and a tuberculin skin test or blood test to check for sensitization to TB bacteria. Additional tests, such as CT scans or biopsies, may be performed if extrapulmonary TB is suspected.
Treatment:
TB is treatable with a combination of medications. The standard treatment usually involves a six-month course of antibiotics. Patients must take the full course of medication as prescribed, even if symptoms start to improve, to ensure complete eradication of the bacteria. Failure to complete treatment may lead to drug-resistant TB, which is more challenging and expensive to treat.
Prevention:
Preventing the spread of TB relies on various strategies. The Bacille Calmette-Guérin (BCG) vaccine can provide some protection against severe forms of TB in children, but it's not very effective in preventing adult pulmonary TB. Other preventive measures include early identification and treatment of infected individuals, improving living conditions to reduce overcrowding and improve ventilation, and promoting awareness and education regarding TB transmission and prevention.
TB is a serious infectious disease that affects millions of people worldwide. Understanding its causes, symptoms, modes of transmission, diagnosis, and treatment options is essential for prevention, early detection, and effective management. Education and awareness are crucial in combating TB and reducing its impact on individuals and communities.