And Then There Were Two

Hawaii and Vermont are the only remaining states that continue to use code-based reporting of HIV cases to federal authorities. In April and January, respectively, Maryland and Massachusetts were the most recent states to convert to names-based reporting, which is preferred by public-health officials. Experts say that names-based reporting allows for more accurate estimates of HIV's impact, since anonymous and confidential seropositive test results that are reported by coded identifiers cannot distinguish between duplicated results from various testing locations or times. Source: StateHealthFacts.org