Reporters analyzed months of ZIP-code-level coronavirus data to try to learn why some areas have seen high infection rates or spikes in case growth. But the reasons for spikes aren’t always clear.

Collectively, 22.7% of the residents examined for the coronavirus in those three zip codes have tested positive. Still, that rate is lower than a week ago when it was 24.1%.

news Public Health These hard-hit Oak Cliff ZIP codes have seen a significant decline in COVID-19 vulnerability Parkland Center for Clinical Innovation lists three Oak Cliff ZIP codes among the ...