TIME Research

Scientists Say Aggressive New HIV Strain Discovered in Cuba

Reports of people in Cuba infected by new strain developing AIDS in less than three years

A recently-discovered form of HIV in Cuba has been found to progress into AIDS some three times faster than the most common strains of the virus, according to a recent study.

The study, conducted by researchers from the University of Leuven in Belgium, followed several reports of HIV-infected people in Cuba developing AIDS in less than three years, far faster than the usual 10 years it typically takes. All patients infected with CRF19, a recently-discovered strain of the HIV virus, had higher levels of it in their body.

They were also more likely to have developed AIDS within three years, the study published in the journal EBioMedicine found. The researchers, who looked at 95 patients at various stages of infection, concluded that the strain must be “particularly fit.”

Approximately 35 million people worldwide are living with HIV or AIDS, and nearly 40 million have died of the disease since the 1980s. Drugs exist to keep the worst effects of the disease at bay, but this new strand threatens to take a toll on patients before they realize they need treatment.

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