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Paulina Pisaniak,1 Milena Konarska,2 Aleksander Tarczon,1 Bartłomiej Stawowy,3 Karolina Bejster,3 Weronika Piórek,1 Wioletta Mędrzycka-Dąbrowska,4 Dorota Ozga5 1EMS Students Association, Medical College, Rzeszów University, Rzeszów, Poland; 2Department of Pathophysiology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Bratislava, Slovakia; 3EMS Students Association, College of Social Sciences, Rzeszów University, Rzeszów, Poland; 4Department of Anaesthesiology Nursing & Intensive Care, Medical University in Gdansk, Gdansk, Poland; 5Institute of Health Sciences, College of Medical Sciences of the University of Rzeszow, Rzeszów, 35-310, PolandCorrespondence: Dorota OzgaInstitute of Health Sciences, College of Medical Sciences of the University of Rzeszow, St. Warzywna 1A, Rzeszow, 35-310, PolandEmail gdozga@poczta.fmAim: Relations between penal responsibility and vaccination obligation can be essential for raising the vaccination rate. Social media play a vital role in distributing information. The attitude towards vaccination consists of many factors, including the criminal law situation in the field of vaccination in a given country. The aim of the study was to assess the impact of criminal law liability and other social factors such as age and education on mothers’ desire to vaccinate their children.Methods: Survey target: mothers from nine European countries (Poland, Germany, Slovakia, France, Norway, Serbia, Romania, Greece, Italy). Response count: 2205. Questionnaire content: adjusted to country-specific legal regulations concerning vaccinations - considering whether vaccines are mandatory, recommended, additional, and how to cover costs. The way of dissemination of the questionnaire: general parental groups on Facebook.Results: The respondents: Poles (30%), Italians, Germans, Slovaks, Greeks (10% each), Norwegians, Frenchwomen, Romanians, Serbians (5% each). The average respondent age: highest: Norway (38.14± 10.08) and Italy (37.35± 8.12), lowest: Slovakia (30.22± 6.19). Respondents with higher, secondary, vocational, primary education represent 58%, 27%, 12%, 3%, respectively, of the group. Countries with above 90% rate of answers that they vaccinate their children: Greece, Norway, Slovakia, France. The lowest rate (55%) recorded for Romania. Sixty-seven percent aware of the existence of anti-vaccination movements. High rates were recorded for Norway (88%), Romania (82%), Poland (78%), Serbia (71%), Greece (67%), Germany (66%). The lowest rate for France (31%). Countries without vaccination at all (Germany, Norway, Romania, Greece), the rest of the countries mentioned above – have some mandatory, recommended and additional vaccinations.Conclusion: In countries with mandatory vaccinations parents have their children vaccinated less willingly than in countries with voluntary vaccinations. The rising level of education and providing information about complications following infectious diseases appear to increase the vaccination rate.Keywords: vaccinations, vaccination obligation, vaccination rate, anti-vaccination movements, recommended vaccinations, additional vaccinations, mandatory vaccinations

The aims of this cross-sectional survey were to evaluate the knowledge, attitudes, and self-reported adherence to recommended vaccinations among a random sample of patients with chronic conditions presenting for a medical visit in out-patient clinics in Italy. Patients who were healthcare workers (HCWs), those with diabetes, those who had received information by Internet, physicians, and friends/relatives, and those who needed more information were more likely to know that the influenza vaccine is recommended for patients with chronic diseases. More than half (58.2%) and 8.9% self-reported to have received at least one recommended vaccination and more than one, respectively. Patients who believed that vaccine-preventable diseases (VPDs) were dangerous for them, those who had received information by physicians, and those who needed information were more likely to have received at least one recommended vaccination. This behavior was less likely in married patients, those who were worried about the side effects of the vaccines, and those who suffered from renal failure. The results highlight the need to implement effective vaccination programs in order to decrease the complication of VPDs in at-risk population.

Starting from 2013, the number of unvaccinated people alarmingly increased in Italy; therefore, in 2017 a new Vaccine National Plan was approved. Healthcare workers (HCWs), especially public health professionals (PHPs, i.e., workers in in the sector of hygiene and preventive medicine), have an important role in informing and promoting vaccinations. In this context, the Italian Study Group of Hospital Hygiene of the Italian Society of Hygiene, Preventive Medicine and Public Health (GISIO-SItI) conducted a national survey to assess knowledge, attitude, and practices towards recommended vaccinations among PHPs. The survey was conducted during October 2019 with an anonymous questionnaire distributed to PHPs attending the 52° SItI National Congress. Overall, 57.1% of operators answered correctly to all seven recommended vaccinations, 12.8% reported to be vaccinated for all seven recommended vaccinations, while 30% were naturally immunized. A higher immunization coverage was reported for anti-hepatitis B (88.9%) and measles (86.1%), and 81.3% of the participants reported being offered the influenza vaccination during the 2018/2019 season. The majority of our sample indicated that hepatitis B (95%) and influenza (93.7%) were the recommended vaccines for HCWs, while less was known regarding varicella, pertussis, diphtheria, and tetanus boosters every 10 years. PHPs who were vaccinated (or who intended to be vaccinated) were more likely to recommend vaccinations to their patients and provided a reassuring example to those hesitant patients. Finally, this is the first study that identified good algorithms (using the techniques of machine learning as Random Forest and Deep Learning) to predict the knowledge of PHPs regarding recommended vaccinations with possible applications in other national and international contexts.

The cross-sectional study assessed the knowledge, attitudes, and practices regarding the recommended vaccinations and factors affecting such outcomes among a sample of healthcare workers (HCWs) in public hospitals in Italy. Only 14.1% knew all the recommended vaccinations for HCWs. Physicians and those who had received information about vaccinations from scientific journals, educational activities, or professional associations were more likely to have this knowledge, while those aged 36−45 were more likely to have less knowledge than those in the age group below 36 years. Only 57.3% agreed that the information received about vaccinations was reliable. Respondents who had children, who worked in pediatric/neonatal wards, who were more knowledgeable, or who did not need further information about vaccinations considered the available information to be reliable. Only 17.7% of respondents always recommended vaccinations to their patients. This behavior was more likely to occur in physicians, in HCWs, in pediatric/neonatal wards, in those who considered the information received about vaccinations reliable, and in those who considered themselves to be at high risk of transmitting an infectious disease to their patients. Health promotion programs and efforts are needed to improve the level of knowledge about vaccinations and immunization coverage among HCWs.