Tuberculosis, or TB, is a disease that infects nearly 11 million people worldwide, killing some 1.25 million of them every year, per data from the World Health Organization. A person infected with ...

The second diagnostic test option is known as a purified protein derivative (PPD) test, but it's commonly referred to as a TB skin test. "TB skin tests have been used in medicine for over a ...

The TB skin test involves injecting a small amount of a fluid called tuberculin into the skin of the arm. A healthcare worker then assesses the injection site 48 to 72 hours later to check for a ...

In Vietnam, applications for the TB test will open on May 26, and submission of the certificate will become mandatory on Sept. 1. In Japan, 10,096 people were newly registered as TB patients in 2023.

A new nanozyme-powered TB test improves detection in people with HIV, offering rapid, electricity-free diagnosis via a beetle-inspired chip.

Kansas is dealing with the largest TB outbreak in modern U.S. history. Here's what to know about tuberculosis testing and cases in Tennessee in 2025.

Despite being fully treatable, tuberculosis claimed 1.25 million lives in 2023, the last year for which data is available. If TB begins to spread unchecked, people throughout the world could ...

In comparison, another commonly used TB testing device costs at minimum $19,000 and the cost per test is around $100 in certain countries. In the study, the LIT device demonstrated high accuracy in ...

The LIT test is designed to offer a low-cost TB testing solution, with each device costing less than $800 and less than $3 per test. In comparison, another commonly used TB testing device costs at ...

Getting a Diagnosis. As soon as you know you have HIV, you should get a tuberculin skin test (TST). You'll get a small amount of liquid with a TB protein injected under the skin on your arm.

Results of a PPD test are not immediate because the test has to determine "if the immune system has been previously (affected) by TB exposure," says Doyle, which can take a couple of days.