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The study authors say the findings suggest that the shingles vaccine can prevent both infection and its complications.
The vaccines appear to sensitize tumors to cancer patients' immune checkpoint inhibitors, the researchers say.
The total represents the most US infections since 1992.
Study shows vaccine effectiveness around 50% for both clinic visits and hospital stays for influenza during the 2025 Southern Hemisphere flu season.
South Carolina officials say all new case-patients were in quarantine before they contracted the disease.
The clade 1 case is the nation's first in a person with no recent travel history and the seventh clade 1 case in the country.
Affected states include Arizona, Illinois, Indiana, Kentucky, Minnesota, Montana, New Hampshire, Oregon, Texas, Utah, West Virginia, Washington, Wisconsin, and Wyoming.
Immunocompromised adults and children should receive an age-appropriate COVID-19 vaccine dose as soon as possible, the organization says.
The 3 recent cases are unrelated, but the fact that all 3 people had not traveled internationally indicates that local person-to-person spread is likely.
The findings underscore the need to explore alternative therapeutic approaches to managing persistent symptoms, the authors say.
