Measles outbreak in Oregon probably bigger, new wastewater testing shows
February 19, 2026
The Oregon Health Authority holds a press briefing urging families to get vaccinated after measles was detected in the wastewater of six Oregon counties. Dawn Nolt, M.D., says small decreases in vaccination rates have left many communities vulnerable to measles, which can be life-threatening to infants: “For measles, we really are very focused on keeping that herd immunity, that vaccine rate very, very high because it's so incredibly contagious.”