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A number of factors can influence the results of RIDTs. The accuracy of Rapid Influenza Diagnostic Tests (RIDTs) depends largely on the conditions under which they are used.
Routine annual influenza vaccination is recommended for all persons aged ≥6 months who do not have contraindications.
A licensed, age-appropriate influenza vaccine (IIV, RIV4, or LAIV4) should be used. Consult package information for age indications.
Emphasis should be placed on vaccination of high-risk groups and their contacts/caregivers. When vaccine supply is limited, vaccination efforts should focus on delivering vaccination to (no hierarchy implied by order listed):
Children aged 6–59 months;
Adults aged ≥50 years;
Persons with chronic pulmonary (including asthma), cardiovascular (excluding isolated hypertension), renal, hepatic, neurologic, hematologic, or metabolic disorders (including diabetes mellitus);
Persons who are immunocompromised due to any cause, (including medications or HIV infection);
Women who are or will be pregnant during the influenza season;
Children and adolescents (aged 6 months through 18 years) receiving aspirin- or salicylate-containing medications and who might be at risk for Reye syndrome;
Residents of nursing homes and other long-term care facilities;
American Indians/Alaska Natives;
Persons who are extremely obese (BMI ≥40); and
Caregivers and contacts of those at risk:
Health care personnel in inpatient and outpatient care settings, medical emergency-response workers, employees of nursing home and long-term care facilities who have contact with patients or residents, and students in these professions who will have contact with patients;
Household contacts and caregivers of children aged ≤59 months (i.e., <5 years), particularly contacts of children aged <6 months, and adults aged ≥50 years; and
Household contacts and caregivers of persons with medical conditions that put them at high risk of severe complications from influenza.
