The authors tested vitamin A levels in 20 children with measles in California. To their surprise, half of them had low levels of vitamin A (less than 0.7), despite the fact that all of them had good nutrition. In the control group of uninfected children, all had normal vitamin levels. In the second control group (patients with other infectious diseases), 30% had a low level of vitamin A. All patients with measles also had a low level of retinol-binding protein and prealbumin. The authors conclude that it is impossible to further suggest that in well-fed American children, vitamin A levels during measles are not lowered. They also suggest that vitamin A levels decrease during other infectious diseases.
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