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States asked the CDC for help validating a high-volume measles test — and waited two months for a "no." With 4,410 confirmed cases and 6 deaths, the US is facing its worst measles outbreak in 35 years, yet no rapid point-of-care tests exist and current lab results take up to 5 days. Public health experts say faster testing is critical to containing the spread.
The US is in the middle of its worst measles outbreak in 35 years — 4,410 confirmed cases as of October 15 and 6 deaths in Pennsylvania — and states are struggling to get the faster testing tools they need to fight it. California and Washington reached out to the CDC this spring asking for help validating a high-volume measles test capable of diagnosing 500 cases in just 8 hours. The CDC took two months to respond, then said it couldn't help, citing other priorities.
The West Coast Health Alliance (California, Washington, Oregon, and Hawaii) detailed the delay in a letter to the new CDC director, urging the agency to develop and share high-volume test protocols for measles and other dangerous pathogens. Because the US declared measles eliminated in 2000, no commercial rapid tests are available domestically — clinics must send samples to public health labs, where results take 2–5 business days.
By the Numbers:
Why it matters: Early case detection is the CDC's own recommended strategy for limiting outbreak spread — but without faster, widely available testing, that strategy has a critical gap. With a depleted CDC workforce and no commercial rapid tests on the market, states may be left to manage one of the most serious measles crises in modern US history largely on their own.
