Figure 2. Cases of West Nile neuroinvasive disease (WNND) in Louisiana (A) and Mississippi (B), 2005–2006. Hurricane Katrina made landfall on August 29, 2005 (Centers for Disease Control and Prevention [CDC] week 35). An increase in WNND cases is noted in the hurricane-affected parishes and counties (black columns) during the 3 weeks after the storm (CDC weeks 35–37). Cases of WNND increased throughout the 2006 season in hurricane-affected parishes. Cases of WNND from unaffected parishes and counties are shown in white columns.
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