The 13-Valent Pneumococcal Polysaccharide Conjugate Vaccine (PCV13) segmentation by type distinguishes products according to carrier protein and dosage format. Carrier‑protein subtypes include CRM197‑based conjugates (the most prevalent, offering a balance of immunogenicity and manufacturing scalability), diphtheria toxoid (DT) conjugates (used primarily in regions with established DT‑based vaccine platforms), and tetanus toxoid (TT) conjugates (selected for synergy with existing TT‑containing schedules). Formulation subtypes comprise single‑dose vials, multi‑dose vials, and prefilled syringes, each influencing cold‑chain logistics, wastage rates, and administration costs. CRM197‑based, single‑dose presentations dominate the market, capturing approximately 60 % of type‑related revenue due to broad regulatory acceptance and ease of use in public‑health campaigns. DT and TT conjugates together account for 25 %, while multi‑dose vials and prefilled syringes split the remaining 15 %, reflecting niche adoption in low‑resource settings and private‑practice clinics. These type distinctions directly affect production volumes, cost structures, and regional market penetration.