Trung bình 1 người mắc sởi có thể lây cho 12-18 người khác
90% người chưa có miễn dịch sẽ bị mắc bệnh nếu tiếp xúc gần với bệnh nhân sởi. Trung bình 1 người mắc bệnh có thể lây cho 12-18 người khác.
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