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The Return of the Preventable / State detail

Delaware

Delaware reported 0 measles cases in 2025 - ranked #41 of 51 states, against a national total of 2,026.

Measles 2025
0
0 in 2024
Measles rank
#41/ 51
1 = most cases nationally
Pertussis 2025
8
whooping cough
Mumps 2025
0
MMR-preventable
Measles MMR
Measles 2022: 0 cases 0 2022 Measles 2023: 0 cases 0 2023 Measles 2024: 0 cases 0 2024 Measles 2025: 0 cases 0 2025
Pertussis DTaP / Tdap
Pertussis 2022: 1 cases 1 2022 Pertussis 2023: 2 cases 2 2023 Pertussis 2024: 53 cases 53 2024 Pertussis 2025: 8 cases 8 2025
Mumps MMR
Mumps 2022: 0 cases 0 2022 Mumps 2023: 1 cases 1 2023 Mumps 2024: 1 cases 1 2024 Mumps 2025: 0 cases 0 2025
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