Asymptomatic Influenza A(H5N1) Infections and Sustained Surveillance—Sustaining Surveillance Beyond the Crisis

these cases now arise from within the US.They point to a gap between what surveillance systems capture and the true scope of infection and highlight the need to strengthen, not curtail, surveillance and reporting.Both human and animal public health scientists from the US Department of Agriculture, US Department of Health and Human Services, Centers for Disease Control and Prevention, US Food and Drug Administration, and the National Institutes of Health responded to the dairy cattle outbreak with valuable laboratory analyses, situational assessments, and guidance for occupational health. 5However, the operational rollout of surveillance measures revealed vulnerabilities.Asymptomatic testing of exposed workers was not initiated quickly, early human surveillance was limited in scope,