What is tuberculosis and how dangerous is it?

Tuberculosis (TB) is a bacterial infection that primarily attacks the lungs but can affect any part of the body. Without treatment, TB is fatal in about half of cases. Even with modern treatment, TB kills over 1 million people annually. Drug-resistant TB strains make treatment more difficult and dangerous.

How does tuberculosis spread?

TB spreads through the air when a person with active pulmonary TB coughs, sneezes, speaks, or sings, releasing bacteria-containing droplets. You can only get TB from someone with active disease in their lungs or throat. Close, prolonged contact (living or working together) poses the highest risk. You cannot get TB from touching surfaces, sharing food, or brief contact.

What is the difference between latent and active TB?

Latent TB means you're infected with TB bacteria but not sick and can't spread the disease. About 5-10% of people with latent TB develop active TB in their lifetime, especially if their immune system weakens. Active TB causes symptoms and can spread to others. Both conditions are treatable, but active TB requires more intensive, longer treatment.

Is there a vaccine for tuberculosis?

Yes, the BCG (Bacille Calmette-Guérin) vaccine is used in many countries where TB is common. BCG is effective at preventing severe TB in children (TB meningitis) but provides variable protection against pulmonary TB in adults. In the U.S., BCG is not routinely used due to low TB prevalence and variable effectiveness.

What is drug-resistant TB?

Drug-resistant TB occurs when bacteria become resistant to standard TB medications. Multi-drug resistant TB (MDR-TB) doesn't respond to at least isoniazid and rifampin, the two most powerful TB drugs. Extensively drug-resistant TB (XDR-TB) is resistant to even more drugs. These forms require longer treatment (18-24 months) with more toxic, expensive medications and have lower cure rates.

Where is tuberculosis most common?

TB occurs worldwide but is most prevalent in Southeast Asia, Africa, and the Western Pacific. Eight countries account for two-thirds of global TB cases: India, Indonesia, China, Philippines, Pakistan, Nigeria, Bangladesh, and South Africa. Check the live outbreak data above for current TB trends.

Ohio

Tuberculosis in Ohio

Tuberculosis (TB) is a contagious bacterial infection that primarily affects the lungs but can spread to other organs. It remains one of the world's deadliest infectious diseases, second only to COVID-19 in recent years. Track Tuberculosis activity and outbreaks specific to Ohio.

Open Web App

iOS Android

Qu'est-ce que Tuberculosis?

Tuberculosis is caused by the bacterium Mycobacterium tuberculosis. In 2022, 10.6 million people fell ill with TB, and 1.3 million died from the disease. One-quarter of the world's population is estimated to be infected with TB bacteria, though most have latent TB (not sick or contagious). TB is curable and preventable, yet it continues to claim lives, particularly in low and middle-income countries.

Symptômes

Persistent cough lasting 3+ weeks
Coughing up blood or mucus
Chest pain when breathing or coughing
Unintentional weight loss
Fatigue and weakness
Fever and night sweats
Chills and loss of appetite

Transmission

TB spreads through airborne particles when a person with active pulmonary TB coughs, sneezes, speaks, or sings. Prolonged, close contact with an infected person increases transmission risk. TB is not spread by touching, sharing food, or brief contact. Poor ventilation increases transmission risk.

Période de Contagiosité : People with active pulmonary TB can be contagious until treated for 2-3 weeks; latent TB is not contagious

Prévention

Early diagnosis and treatment of active TB cases
Treatment of latent TB infection to prevent progression
BCG vaccination in high-burden countries (protects children)
Good ventilation in indoor spaces
Respiratory hygiene (covering mouth when coughing)
Isolation of infectious TB patients until no longer contagious
Regular screening for high-risk populations
UV light or air filtration in healthcare settings

Ohio Ressources Santé

Informations du département de santé local et directives de prévention spécifiques à l'état

Nous Surveillons Ohio

Notre surveillance alimentée par IA surveille en continu l'activité de Tuberculosis dans tout Ohio. Nous suivons les données des services de santé des états, des hôpitaux locaux, des rapports du CDC et de plus de 50 sources de santé mondiales pour fournir une alerte précoce sur les menaces émergentes.

Recevez des notifications instantanées lorsque l'activité de Tuberculosis augmente dans Ohio ou dans votre comté spécifique.

Open Web App

iOS Android

Ohio Département de Santé

Pour les alertes officielles de santé de l'état, les lieux de vaccination et les directives de santé publique spécifiques à Ohio, visitez le site web du département de santé de votre état.

→ Ohio Département de Santé → Trouver Tuberculosis Vaccination Près de Chez Vous → Avis de Santé Voyage du CDC

Se Protéger dans Ohio

Que vous viviez dans Ohio, que vous y voyagiez ou que vous ayez de la famille dans cet état, comprendre la Tuberculosis prévention est essentielle. Suivez ces mesures de prévention fondées sur des données probantes :

Mesures de Prévention

Early diagnosis and treatment of active TB cases
Treatment of latent TB infection to prevent progression
BCG vaccination in high-burden countries (protects children)
Good ventilation in indoor spaces
Respiratory hygiene (covering mouth when coughing)
Isolation of infectious TB patients until no longer contagious
Regular screening for high-risk populations
UV light or air filtration in healthcare settings

Quand Consulter un Médecin

Si vous présentez des symptômes de Tuberculosis dans Ohio, contactez immédiatement votre médecin. Un diagnostic et un traitement précoces améliorent considérablement les résultats.

Symptômes d'urgence : Si vous présentez des symptômes graves, des difficultés respiratoires ou des signes de déshydratation, appelez le 15 ou rendez-vous aux urgences les plus proches.

Ressources Expertes et Références

Informations fiables provenant des principales organisations de santé

CDC

Directives officielles des Centers for Disease Control and Prevention des États-Unis

Voir les Ressources du CDC →

WHO

Surveillance mondiale des maladies et directives de l'Organisation Mondiale de la Santé

Voir les Ressources de l'OMS →

Recherche

Dernières recherches évaluées par les pairs et études cliniques

Voir la Recherche →

Contenu Révisé Médicalement

Les informations sur les maladies sur Virus Watcher sont révisées par notre Épidémiologiste en Chef, ancien analyste principal du CDC pour les prévisions FluSight. Les données épidémiques sont agrégées à partir de sources vérifiées notamment BEACON, ProMED, OMS, CDC et plus de 50 agences nationales de santé. Ces informations sont à des fins éducatives et ne doivent pas remplacer les conseils médicaux professionnels.

Dernière révision : 2026-06-29

Recent Tuberculosis Reports

No confirmed cases reported in Ohio yet. Here are the latest Tuberculosis reports from our global surveillance network.

New Delhi: A simple calculator developed by Indian researchers can predict which tuberculosis (TB) patients are at the highest risk of death at the time of diagnosis itself, according to a study published in BMJ Open. Researchers say the tool could help identify high-risk patient…

United States · Alaska · 2026-06-26

A simple five-question tool that requires no laboratory tests can help health workers quickly identify tuberculosis (TB) patients who are most likely to become severely ill and need urgent hospital care, according to a study published recently in BMJ Open. Researchers found that…

United States · Alaska · 2026-06-24

India bears about 25% of the global TB burden, with ~2.8 million new cases annually despite a 21% incidence decline from 2015–2024, outpacing the global 12% drop, aided by Ni-kshay and TB Mukt Bharat Abhiyan (key pillars of India’s national initiative to eliminate) though challen…

India · 2026-06-26

Targeted vaccination and improved testing planned as part of drive to eradicate disease by 2038 Cattle will be vaccinated against tuberculosis from 2030 as a "gamechanging" part of a new strategy to drive eradication of the disease in England by 2038. In parallel, the last badge…

United Kingdom · England · 2026-06-11

NEW DELHI: A sweeping tuberculosis screening effort across the Northeast has uncovered a troubling reality: more than one-third of the TB cases detected among vulnerable populations showed no symptoms at all. The finding highlights the challenge of identifying "silent" infections…

United States · Alaska · 2026-06-19

Ranchi: Health minister Irfan Ansari announced that Jharkhand govt has set a target of eliminating tuberculosis (TB) by 2029 and is working on a war footing to achieve the milestone.Ansari made the announcement while attending the two-day National Task Force meeting under the Nat…

United States · Alaska · 2026-06-12

This event envelope collects reports on tuberculosis clusters and outbreaks in the United States. *Source: BEACON* - [View Full Report](https://beaconbio.org/en/event/?eventid=54058967-1ee5-4e9d-82bc-054fa8beac62)

United States · 2026-05-09

The Delhi health department has detected 12,078 cases of tuberculosis (TB) in the Capital during a screening drive between March 24 to May 5, according to data shared by the department pertaining to the Delhi National TB Elimination Programme (NTEP). The drive is ongoing, officia…

United States · Alaska · 2026-05-08

View all Tuberculosis alerts →

Questions Fréquemment Posées

Questions fréquentes sur Tuberculosis répondues par notre équipe d'épidémiologie

Maladies Associées

Suivez d'autres maladies aux symptômes ou modes de transmission similaires

covid 19 pneumonia hiv aids bronchitis lung cancer

Obtenez Tuberculosis Alertes pour Ohio

Recevez des notifications instantanées lorsque l'activité de Tuberculosis augmente dans Ohio ou vos destinations de voyage. Suivez plus de 200 maladies avec des alertes géolocalisées. Utilisé par les systèmes de santé, les services médicaux d'urgence, les écoles et les voyageurs du monde entier.

Open Web App

iOS Android

Solutions Entreprises