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Fig. 1 | BMC Infectious Diseases

Fig. 1

From: Long-term immunogenicity and safety after a single dose of the quadrivalent meningococcal serogroups A, C, W, and Y tetanus toxoid conjugate vaccine in adolescents and adults: 5-year follow-up of an open, randomized trial

Fig. 1

Flow of participants. ACWY-TT = group of participants who received one dose of MenACWY-TT at Month 0; Men-PS = group of participants who received one dose of MenACWY-PS at Month 0; N = number of participants; ATP = according to protocol. *Due to a delay in the annual approval from the FDA of the Philippines for the Year 5 persistence timepoint, all participants enrolled in the Philippines attended the Year 5 visit outside protocol-defined windows between the primary vaccination and the Year 5 blood sampling and hence were eliminated from the ATP analysis at Year 5 because of non-compliance with the blood sampling schedule

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