Target: To explore if there is a diifference between the occurrence of acute upper respiratory tract infection, pneumonia and influence in all age groups in Splitsko Dalmatunska county in comparison with the results of the Republic of Croatia in a five years time frame from 2008 to 2012. the target is also to expolore the share of nurses in prevention of Methodology: The foundation of the survey is based on information obtained from Public Institute for statistics of the Republic of Croatia and the Court of public health teaching institute for public health for Splitsko-Dalmatian county. For the Republic of Croatia as well as information gained from the Public Institute for statistics some information were obtained from Croatian health and statistics Yearbook and the European office of World's health organisation. The highest rates of incidence of acute upper respiratory tract infections have children aged up to 6 years 1,800.91 / 1,000 population of the same age (95% CI 912.66 to 2689.20) Behind them the highest rates of morbidity had children aged 7-19 years, with significantly lower average rate of 573.66 / 1.000 (95% CI 420.03 to 727.30) In the working age population there is small average annual rate of morbidity 234.40 / 1.000 (95% CI 197.76 to 271 , 04). Members of the oldest age group 65 years and older had an average annual rate of morbidity 151.16 / 1.000 (95% CI 121.37 to 180.94). Between SDŽ and R. Croatia was no statistically significant difference in the incidence of PHC due AIGDP except the flu at age 65 years and over, where Croatia has higher rates of mortality and morbidity rates in the pneumonia where SDŽ has higher rates of morbidity at the same age. Hospitalization for acute upper respiratory infection is rarely applied while hospitalization due to pneumonia is more common, and lately increasingly of hospitalization because of influenza. 71 By 2009 it could be argued that the number of hospitalizations / hospital discharge due to influenza in SDŽ and in Croatia was insignificant to the same 2009 and 2011 increased manifold. The minimum number of hospitalizations due to influenza were in 2006 and 2010. Between SDŽ and Croatian there is no statistically significant difference in rates of hospital discharge As with the number treated for pneumonia in PHC and in the number of hospitalizations / hospital discharge for pneumonia there is no significant fluctuations in the number of discharge between individual years. SDŽ in relation to the Republic of Croatia has significantly higher rates of hospitalization / discharge due to pneumonia (χ² = 24.75, p <0.001). Mortality AIGDP is almost gone. In the period from 2008th to 2012th one fatality occurred in 5000 treated for flu in PHC which gives the average annual fatality of 0.02%. The number of deaths from pneumonia is in constant decline, and the lethality of pneumonia is less than 1% for last two years. Due to the constant increase in the number of patients with glomerular kidney disease streptococcal infections should be given special attention. The success of the entire group of diseases prevention of acute respiratory infections are more dependent about general measures of prevention and treatment at the primary health care than on specific preventive measures.