Here Are New Diagnostic Tools To End Tuberculosis –WHO

The World Health Organisation (WHO) has identified new diagnostic tools that could be used to effectively end the scourge of tuberculosis.

Urging countries to accelerate action to end tuberculosis (TB), it referred to diagnostic tests that can be used near the point-of-care and tongue swabs that can help detect the disease faster reaching more people as helpful.

The global health body, said on World TB Day, said the new guidelines on tests for TB that can be used near the point-of-care, issued by WHO, mark another step towards faster detection and treatment of one of the world’s deadliest infectious diseases.

These portable, simple-to-use tests, it added, bring tuberculosis diagnosis closer to where people routinely seek care, available at less than half the cost of many existing molecular diagnostics.

According to it, they can help countries expand access to testing which can operate on battery power and deliver results in less than one hour, allowing patients to start treatment sooner.

“These new tools could be truly transformative for tuberculosis, by bringing fast, accurate diagnosis closer to people, saving lives, curbing transmission and reducing costs,” said

“WHO calls on all countries to scale up access to these and other tools so every person with TB can be reached and treated promptly”.

According to the WHO, beyond TB, the devices have the potential to test for other diseases like HIV, mpox, and HPV, making diagnostics more patient-centered, equitable, and aligned with one-stop-shop style services for emerging and circulating diseases.

New sample collection methods to expand TB testing

The guidelines also recommend easy-to-collect tongue swab samples, as well as a cost-saving sputum pooling strategy to increase testing efficiency for tuberculosis and rifampicin-resistant TB, the release said.

It added that tongue swabs allow adults and adolescents who cannot produce sputum to receive TB testing for the first time, enabling disease detection among people who are at an increased risk of dying from TB.

Also, sputum pooling, where samples from several individuals are combined and tested together, can significantly reduce commodity costs and machine time, leading to faster results for people and TB programmes – an approach specifically recommended when resources are exceptionally constrained.

Global progress at risk without faster diagnosis

“TB remains one of the world’s deadliest infectious killers.

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“Each day, over 3300 people die from TB and more than 29 000 people fall ill with this preventable and curable disease.

“Global efforts to combat TB have saved an estimated 83 million lives since 2000, however cuts in global health funding are threatening to reverse these gains.

Uptake of rapid diagnostic tools has been a challenge in many countries due, in part, to high costs and reliance on sample transport to support testing at centralized laboratories”, the World Health body said.

However, scaling up proven solutions, including point-of-care urine tests for people living with HIV, and near-point-of-care, low- or moderate-complexity tests for people with and without HIV, can collectively be used to close diagnostic gaps across all levels of the health system.

Such efforts can help advance toward global targets for universal access to TB and drug resistance testing, reduce delays in treatment initiation and curb transmission, it added.