Global Health Ideas

Finding global health solutions through innovation and technology

Rapid HIV CD4 Counter (8 minutes)

With slight modifications I lifted the below from the CIMIT Blog (note Video on their blog), certainly a needed innovation for global health:

Via CIMIT: Microfluidic CD4 Cell Counting for Resource-Limited Settings

“The HIV pandemic has created an unprecedented global health emergency. In response, the price of effective, life-saving HIV drug treatment has been reduced by 99%. More than $10 billion is now invested each year to treat people suffering from HIV and AIDS…BUT Treatment is only half the battle. “

“Of the 33 million people living with HIV worldwide, fewer than 10% have access to CD4 counts, the critical blood test used by clinicians to decide when to start treatment. Fewer than 1% have access to viral load assays, which are used for infant diagnosis and for patient monitoring. Both tests are considered essential to effective treatment. The Use Case for appropriate CD4 and viral load tests appropriate for resource-limited settings is clear”:

  • Tests need to be performed by a minimally skilled health worker,
  • A the true point of care,
  • Reliably and inexpensively, and
  • Wth reasonable accuracy and precision. The HIV pandemic thus represents an unprecedented opportunity to drive technology development in point-of-care diagnostics.

“Based on this Use Case, William Rodriguez’s lab has developed a series of technologies for an integrated CD4 cell count device, with microfluidics as the key platform…Integrating these microfluidic technologies has led to a prototype handheld device that can accurately capture CD4 cells from a 10 microliter fingerstick sample of whole blood, and accurately measure CD4 counts in under 8 minutes.

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Written by Aman

August 7, 2008 at 8:38 pm

One Response

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  1. Hi,
    I am a medical outreach coordinator and I am looking to buy a CD4 counter. How much do they cost?
    Thank you.

    Ashley Wilkins

    August 8, 2008 at 8:40 am


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