Youth participation in healthcare is becoming more prevalent, and outcomes are improved when youth have a voice in decisions. Little is known about how much adolescents participate in decision-making about vaccinations including "optional" vaccines or those not required for school attendance. This is a survey to evaluate the extent to which adolescents were involved in the decision to be vaccinated for 4 common vaccines: FLU (influenza), COVID (SARS-CoV-2 virus), MEN (meningococcemia), and HPV (Human Papilloma Virus).

The investigational varicella vaccine (hereafter referred to as VNS vaccine) is a new
candidate varicella vaccine derived from the Oka strain. The main rationale for the
development of VNS vaccine is to provide an additional alternative varicella vaccine as an advantage from a public health perspective to prevent varicella disease

INVESTED is a multi-site trial comparing high-dose (60 μg per vaccine viral strain) trivalent influenza vaccine to standard-dose (15 μg per viral strain) quadrivalent influenza vaccination for up to three influenza seasons in high-risk cardiovascular disease patients with a history of myocardial infarction in the previous 12 months OR history of heart failure hospitalization in the previous 24 months. Subjects will be randomly assigned to receive either the high-dose or standard-dose vaccine.