Requests of medical examinations after pneumococcal & influenza vaccination in the elderly

There are no specific recommendations about pneumococcal vaccination (PV) in Italy. There are limited data on the requests of medical examination or hospitalization due to side effects of pneumococcal vaccination. In the present study we present our analyses on the requests of medical examination due to side effects of pneumococcal vaccination (PV) in 29,086 elderly aged >/=65 yr.

Vaccination with influenza vaccine (IV) alone or in association with PV was offered during the IV campaign in the winter 1999-2000 in 8 counties of Sicily. General practitioners (GPs) provided the vaccination and, 72 h later, recorded local and systemic side effects by a telephonic interview with the waccinees. GPs recorded also the requests of medical treatments.

A total of 16,601 subjects (57.1%) were vaccinated with IV alone and 12,485 (42.9%) with the association IV+PV. Adverse effects were reported by 14.7 per cent of vaccinees. Out of 4,289 subjects with side effects, 305 (7.1%) looked for a medical examination. The factors associated with a significantly increased risk for medical examination after vaccination were symptoms duration >72 h (OR 2.04; 95% CI 1.38-3.01; P=0.0002); local induration (OR 3.26; 95% CI 2.07-5.13; P<0.0001); general malaise (OR 2.05; 95% CI 1.34-3.13; P=0.0009); fever >/=38 degrees C (OR 3.34; 95% CI 1.90-5.86; P<0.0001); myalgia (OR 2.80; 95% CI 1.46-5.37; P=0.0018) and dyspnea (OR 37.86; 95% CI 9.65-148.60; P=0.0001).

The few requests for medical examination and the low rate of adverse effects confirmed the tolerability and safety of PV+IV; GPs consultation were related to the severity and duration of symptoms, but independent of the type of vaccine administered.