Adults Vaccines Market Size, Share & Industry Analysis, By Type (Recombinant/Conjugate/Subunit, Inactivated, mRNA, Viral Vector, Live Attenuated, Toxoid, and Others), By Route of Administration (Parenteral and Oral), By Disease Indication (Viral Diseases {Hepatitis, Influenza, Human Papillomavirus, Herpes Zoster, and Others} and Bacterial Diseases {Meningococcal Disease, Pneumococcal Disease, Diphtheria/Tetanus/Pertussis, and Others}), By Distribution Channel (Hospital & Retail Pharmacies, Government Suppliers, and Others), and Regional Forecast, 2026-2034