Abstract
The common cause of exacerbations in asthmatics are viral infections. Infl uenza infection especially increases the risk of respiratory exacerbations. The ACIP report puts asthma among indications to regular infl uenza vaccinations. In practice, many physicians doubt in effectiveness and safety of vaccination in patients suffering from allergy. It caused such procedures were not included in asthma guidelines published by other authors. Our study confi rmed the safety of infl uenza split vaccine vaccination in asthmatics. We proved that vaccination had not any infl uence on asthma control in 14-day period after injection. We showed also high frequency of, mostly local, side effects. These events were generally mild and transient.