Tuberculosis and COVID-19 Associations
Know about tuberculosis and COVID-19, how they are connected, who is at risk, and how to protect yourself from covid19, and does covid trigger TB.
Introduction
Tuberculosis (TB) and COVID-19 are both infectious diseases that primarily affect the lungs. While they are caused by different germs, TB by bacteria (Mycobacterium tuberculosis) and COVID-19 by the SARS-CoV-2 virus, they share some similarities in symptoms and complications.
If you or a loved one has TB or has recovered from COVID-19, it’s important to understand how these two illnesses may interact and what precautions to take.
How Are TB and COVID-19 Connected?
- Similar Symptoms – Both diseases can cause fever, cough, fatigue, and difficulty breathing. This can sometimes make it hard to distinguish between them without proper testing.
- Lung Damage – TB weakens the lungs by causing scarring and reducing lung function. COVID-19 can also lead to pneumonia and lung inflammation, making recovery harder for TB patients.
- Weakened Immunity – People with active TB may have a weaker immune system, making them more vulnerable to severe COVID-19. Similarly, COVID-19 can temporarily weaken immunity, increasing the risk of TB reactivation in those with latent TB.
- Delayed Diagnosis & Treatment – During the pandemic, many TB cases went undiagnosed because healthcare resources were focused on COVID-19. This delay can worsen TB outcomes.
Consult a Pulmonologist for Personalised Advice
Who Is at Higher Risk?
It includes:
- People with active TB or a history of TB
- Those with weakened immune systems (e.g., HIV, diabetes, or malnutrition)
- Smokers and individuals with chronic lung diseases
- Elderly individuals
What Should TB Patients Do to Protect Themselves from COVID-19?
If you have TB or are recovering from it, taking extra precautions against COVID-19 is crucial:
- Continue TB Treatment – Never stop TB medications without consulting your doctor. Incomplete treatment can lead to
drug-resistant TB. - Follow COVID-19 Precautions – Wear masks in crowded places, maintain hand hygiene, and avoid close contact with sick individuals.
- Get Vaccinated – COVID-19 vaccines are safe for TB patients and can prevent severe illness. Consult your doctor before vaccination.
- Monitor Symptoms – If you develop a new or worsening cough, fever, or breathing difficulties, seek medical help
immediately. - Eat a Balanced Diet – A nutritious diet strengthens immunity. Include proteins, vitamins, and minerals in your meals.
- Avoid Smoking & Alcohol – These weaken the lungs and immune system, making recovery harder.
Can COVID-19 Trigger TB?
While COVID-19 does not directly cause TB, severe infections can weaken the immune system, potentially leading to
the reactivation of latent TB (where the bacteria are inactive but still present in the body). If you had TB in the past and recently recovered from COVID-19, watch for TB symptoms like prolonged cough, weight loss, or night sweats.
When to See a Doctor?
Consult a healthcare provider if you experience:
- Persistent cough (lasting more than 2 weeks)
- Fever, fatigue, or unexplained weight loss
- Difficulty breathing or chest pain
- Worsening symptoms despite treatment
Early diagnosis and treatment can prevent complications.
Final Thoughts
Both TB and COVID-19 are serious but manageable with timely medical care. If you have TB, staying on treatment and protecting yourself from COVID-19 is essential. If you’ve had COVID-19 and notice lingering respiratory issues, consult a doctor to rule out TB or other complications.
Consult a Pulmonologist for Personalised Advice
Consult a Pulmonologist for Personalised Advice
Dr. Sumara Maqbool
Pulmonology Respiratory Medicine Specialist
12 Years • MBBS, DNB Respiratory, critical care and sleep medicine, DrNB superspeciality Critical care, IDCCM, IFCCM, EDIC
Delhi
Apollo Hospitals Indraprastha, Delhi
(25+ Patients)
Dr. Gomathi R G
Respiratory Medicine/ Covid Consult
7 Years • MBBS, MD (TB & Pul. Med.)
Chennai
Apollo First Med Hospitals P H Road, Chennai
Dr. Aakanksha Chawla
Pulmonology Respiratory Medicine Specialist
9 Years • MD (Pulmonary Medicine), IDCCM, IFCCM (Indian Fellowship in Critical Care Medicine)
Delhi
Apollo Hospitals Indraprastha, Delhi
(250+ Patients)
Dr. Naseeha Mohammed S V
Pulmonology Respiratory Medicine Specialist
6 Years • MBBS, MD ,DNB Respiratory Medicine
Bengaluru
Apollo Clinic, Sarjapur Road, Bengaluru
Dr. Amrutha G
General Physician/ Internal Medicine Specialist
10 Years • MBBS,DNB(family medicine), Diabetologist-CCEBDM,CCGDM
Bengaluru
Apollo Clinic, Sarjapur Road, Bengaluru
