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  • Warning: Undefined array key "title" in template_preprocess_links() (line 661 of core/includes/theme.inc).
    template_preprocess_links()
    call_user_func_array() (Line: 261)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 128)
    __TwigTemplate_9c468284e9d26e322b2a3d3149c31d21->block_content() (Line: 456)
    Twig\Template->yieldBlock() (Line: 76)
    __TwigTemplate_9c468284e9d26e322b2a3d3149c31d21->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 67)
    __TwigTemplate_6189542c58ee3c62a024a513de1ead33->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 111)
    __TwigTemplate_f2fdfa9edc7a6492a3b86d4105db5b32->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 177)
    __TwigTemplate_61ef858edd0669fb8c726db25524cf9f->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 503)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 46)
    __TwigTemplate_29b6bfc80338a93f0de70ca28bc6de70->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 123)
    __TwigTemplate_cb82490e8c8a86cb2e018713f9394ef2->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 158)
    Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 637)
    Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 153)
    Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
    Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
    call_user_func() (Line: 111)
    Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186)
    Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
    Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
    Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
    Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
    Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 48)
    Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
    Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
    Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 185)
    Drupal\cloudflare\CloudFlareMiddleware->handle() (Line: 51)
    Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
    Drupal\Core\DrupalKernel->handle() (Line: 19)
    
  • Warning: Undefined array key "title" in template_preprocess_links() (line 717 of core/includes/theme.inc).
    template_preprocess_links()
    call_user_func_array() (Line: 261)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 128)
    __TwigTemplate_9c468284e9d26e322b2a3d3149c31d21->block_content() (Line: 456)
    Twig\Template->yieldBlock() (Line: 76)
    __TwigTemplate_9c468284e9d26e322b2a3d3149c31d21->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 67)
    __TwigTemplate_6189542c58ee3c62a024a513de1ead33->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 111)
    __TwigTemplate_f2fdfa9edc7a6492a3b86d4105db5b32->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 177)
    __TwigTemplate_61ef858edd0669fb8c726db25524cf9f->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 503)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 46)
    __TwigTemplate_29b6bfc80338a93f0de70ca28bc6de70->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 123)
    __TwigTemplate_cb82490e8c8a86cb2e018713f9394ef2->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 158)
    Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 637)
    Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 153)
    Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
    Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
    call_user_func() (Line: 111)
    Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186)
    Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
    Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
    Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
    Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
    Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 48)
    Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
    Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
    Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 185)
    Drupal\cloudflare\CloudFlareMiddleware->handle() (Line: 51)
    Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
    Drupal\Core\DrupalKernel->handle() (Line: 19)
    
  • Warning: Undefined array key "title" in template_preprocess_links() (line 661 of core/includes/theme.inc).
    template_preprocess_links()
    call_user_func_array() (Line: 261)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 128)
    __TwigTemplate_9c468284e9d26e322b2a3d3149c31d21->block_content() (Line: 456)
    Twig\Template->yieldBlock() (Line: 76)
    __TwigTemplate_9c468284e9d26e322b2a3d3149c31d21->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 188)
    __TwigTemplate_6189542c58ee3c62a024a513de1ead33->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 111)
    __TwigTemplate_f2fdfa9edc7a6492a3b86d4105db5b32->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 177)
    __TwigTemplate_61ef858edd0669fb8c726db25524cf9f->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 503)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 46)
    __TwigTemplate_29b6bfc80338a93f0de70ca28bc6de70->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 123)
    __TwigTemplate_cb82490e8c8a86cb2e018713f9394ef2->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 158)
    Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 637)
    Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 153)
    Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
    Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
    call_user_func() (Line: 111)
    Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186)
    Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
    Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
    Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
    Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
    Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 48)
    Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
    Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
    Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 185)
    Drupal\cloudflare\CloudFlareMiddleware->handle() (Line: 51)
    Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
    Drupal\Core\DrupalKernel->handle() (Line: 19)
    
  • Warning: Undefined array key "title" in template_preprocess_links() (line 717 of core/includes/theme.inc).
    template_preprocess_links()
    call_user_func_array() (Line: 261)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 128)
    __TwigTemplate_9c468284e9d26e322b2a3d3149c31d21->block_content() (Line: 456)
    Twig\Template->yieldBlock() (Line: 76)
    __TwigTemplate_9c468284e9d26e322b2a3d3149c31d21->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 188)
    __TwigTemplate_6189542c58ee3c62a024a513de1ead33->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 111)
    __TwigTemplate_f2fdfa9edc7a6492a3b86d4105db5b32->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 177)
    __TwigTemplate_61ef858edd0669fb8c726db25524cf9f->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 503)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 46)
    __TwigTemplate_29b6bfc80338a93f0de70ca28bc6de70->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 484)
    Drupal\Core\Template\TwigExtension->escapeFilter() (Line: 123)
    __TwigTemplate_cb82490e8c8a86cb2e018713f9394ef2->doDisplay() (Line: 411)
    Twig\Template->yield() (Line: 366)
    Twig\Template->display() (Line: 381)
    Twig\Template->render() (Line: 51)
    Twig\TemplateWrapper->render() (Line: 33)
    twig_render_template() (Line: 348)
    Drupal\Core\Theme\ThemeManager->render() (Line: 490)
    Drupal\Core\Render\Renderer->doRender() (Line: 248)
    Drupal\Core\Render\Renderer->render() (Line: 158)
    Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 637)
    Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 153)
    Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
    Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
    call_user_func() (Line: 111)
    Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 186)
    Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
    Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
    Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
    Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
    Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 48)
    Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
    Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
    Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 185)
    Drupal\cloudflare\CloudFlareMiddleware->handle() (Line: 51)
    Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 741)
    Drupal\Core\DrupalKernel->handle() (Line: 19)
    
Truck driver Johnny is given a free chest X-ray at one of MSF's active case finding sites for tuberculosis on March 13, 2023 in Tondo, Manila, Philippines.
A man is given a free chest x-ray at one of MSF's active case finding sites for tuberculosis in Tondo, Manila, Philippines, 13 March 2023.
© Ezra Acayan
Ebola disease in DRC: find out how we're responding
Learn more
Tuberculosis (TB) is one of the world’s biggest global health crises. Killing 1.3 million people in 2022, TB is the world’s second deadliest infectious disease after COVID-19.

Obsolete treatments, the lack of an effective vaccine, and the lack of suitable diagnostic tools make it difficult to control the global TB epidemic. In 2022, 7.5 million people across 192 countries and areas were diagnosed with TB.
 
Some gains have been made in recent years; the first new TB drugs in half a century and the trial of a shorter course of treatment for drug-resistant TB. But the harsh reality remains - 10.6 million people fell sick with TB and 410,000 developed multidrug-resistant TB (MDR-TB) in 2022, which is much harder to treat. Only about one-third of people with DR-TB accessed treatment in 2021. The majority go undiagnosed and therefore untreated.

Tuberculosis

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We produce important research based on our field experience. So far, we have published articles in over 100 peer-reviewed journals. These articles have often changed clinical practice and have been used for humanitarian advocacy. Read all our Tuberculosis-related articles on our dedicated Field Research website.

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Blood analysis at the Kara-Suu hospital laboratory. Kara-Suu
© Maxime Fossat

Tuberculosis

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