PUERTO VALLARTA, Jalisco – The Puerto Vallarta region is encountering significant obstacles in its efforts to combat influenza, particularly in vaccinating children under the age of five, reports the head of the Eighth Health Region of the Jalisco Health Secretariat, Jaime Álvarez Zayas. Despite the lack of hospitalizations or deaths from influenza, the region’s vaccination campaign is experiencing setbacks, primarily due to parental hesitancy.