How Common Are Tuberculosis and HIV Co-infections?
One of the main causes of death in people who have HIV is tuberculosis (TB). HIV weakens the immune system, which makes it easier for infections like TB to grow. In developed countries, fewer people with HIV get TB nowadays because HIV medicines help the immune system stay stronger.
Even so, many people living with HIV still get TB, especially those who were born outside developed countries. This shows that TB is still a serious problem for people with HIV around the world.
What Is the Cause of Tuberculosis and HIV Co-infection?
Tuberculosis and HIV co-infection happen when someone has both the TB bacteria (called Mycobacterium tuberculosis) and the human immunodeficiency virus (HIV) in their body at the same time.
HIV attacks the immune system, especially CD4 cells, which are the cells that fight infections. When these cells are weak, the body cannot fight germs properly.
Even if someone has TB bacteria but it is not active (called latent TB), HIV can weaken the immune system enough to turn it into active TB. That is why people with HIV need to be checked for TB often.
What Is the Connection Between HIV and TB?
Tuberculosis is what doctors call an "opportunistic infection." This means TB usually only becomes serious when a person has a weak immune system. HIV weakens the immune system, which makes TB much more likely.
Here is how HIV and TB affect the body together:
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HIV attacks CD4 (cluster of differentiation 4) and T cells and macrophages (types of white blood cells that fight germs).
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TB bacteria mainly attack macrophages.
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Because HIV lowers the number of CD4 cells, the macrophages cannot kill TB bacteria well.
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This makes it easier for TB to grow in someone who has HIV.
Macrophages are like the body’s garbage collectors for germs. When they cannot do their job properly, germs survive and spread. Over time, a person with both HIV and TB can get sicker quickly.
TB also causes long-term inflammation (the body's reaction to infection), which helps HIV spread faster in the body. So these two infections make each other worse. Doctors say that having both infections is the most dangerous situation for someone with TB.
Also, HIV can wake up TB infections that were quiet (latent TB), making the disease active. This is why people with HIV are at a high risk for TB.
What Are the Symptoms of Tuberculosis?
It can be hard to tell HIV symptoms apart from TB symptoms because they can look alike. But common TB signs in adults include:
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A cough that does not go away.
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Fever that lasts a long time, sometimes with chills and night sweats.
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Feeling very weak.
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Pain or discomfort in the body or muscles.
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Loss of appetite.
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Chest pain.
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Losing weight.
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Feeling very tired.
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Swollen or sore lymph nodes (small lumps in the neck, armpits, or groin).
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Pain in joints or throat.
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Headaches.
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Skin rashes.
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Feeling sick or throwing up.
These signs can appear slowly and are easy to ignore. That is why regular medical checkups are important, especially for people living with HIV.
What Is the Treatment for Tuberculosis?
People need TB treatment with an HIV test if their doctor suspects conditions. Doctors decide when to start each medicine and which ones are safe to take together. Some HIV and TB medicines can affect each other and cause side effects, so timing and choice are very important.
It is important for patients to see a doctor as soon as they notice symptoms. Finding the infection early gives a better chance of getting better.
The World Health Organization (WHO) recommends the following:
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Doctors should carefully check people with HIV to find TB quickly. Once TB is found, treatment should start right away.
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Medicines like Isoniazid and Rifapentine are usually taken once a week for twelve weeks. This is the current treatment for people taking HIV medicines.
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People with TB should also be tested for HIV.
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If someone has both infections, doctors give HIV medicines (antiretroviral therapy) along with Cotrimoxazole (an antibiotic that prevents other infections).
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Regular doctor visits are needed to make sure the treatment is working and to help patients recover faster.
How to Prevent Tuberculosis and HIV Co-infection?
Preventing TB in people with HIV requires regular checkups and following some safety steps:
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Regular visits to the doctor.
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Chest X-rays and sputum tests to catch TB early.
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Take one Isoniazid tablet daily for at least six months if recommended by the doctor.
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Avoiding crowded, closed, or poorly ventilated spaces where TB germs spread easily.
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Getting the TB vaccine (called the BCG vaccine) to prevent infection.
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Screening for TB and HIV regularly to catch problems early.
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Wearing a face mask if you have a cough to stop spreading germs to others.
Conclusion
TB in an HIV-infected person is a serious health problem. Its management requires careful treatment planning and ongoing care. Vaccination for TB alone is not sufficient; hence, regular checkups are required.
Scientists worldwide are studying new vaccines that might prevent these infections together. Meanwhile, doctors and hospitals need better testing, diagnosis, and treatment methods.
Early treatment is crucial because untreated co-infections can lead to more deaths. If ignored, the combination of HIV and TB could spread widely, becoming a dangerous epidemic.
Taking care of your health is important, so consult our pulmonologists and HIV specialist doctors at icliniq.com to reduce complications from these infections.
Key Takeaways
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People with HIV are at higher risk for TB.
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Regular screenings for HIV-positive people can stop TB from becoming serious.
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So regular checkups and screenings are essential.
