Experts from the World Health Organization (WHO) are warning that a shortage of HIV testing could undermine global efforts to diagnose and treat people with the infection.
The experts looked at responses to annual surveys that the WHO had sent to 127 countries from 2012 to 2014, asking about capacity and usage of blood tests that check HIV status and health.
The experts found worrying gaps. They warn that United Nation targets for HIV could be missed as a result.
The targets, among other things, say that by 2020, 90% of all people living with HIV should know their status and receive anti-retroviral therapy.
Laboratory testing is vital to meet and monitor these aims.
The experts say some low and middle-income countries, including African countries where the HIV burden is high, are not yet ready for the challenge.
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