Conjugate vaccine is a type of vaccine that contains bacterial capsular polysaccharide, attached with a protein to enhance immunogenicity and protect against invasive diseases. Europe is a market with stable growth for conjugate vaccines. The conjugate vaccine market in Europe is expected to expand at a CAGR of 3.6% leading to a revenue of USD 8.94 Bn by 2023. By volume, it is anticipated to reach 504.46 Million units by 2023, expanding at a CAGR of 3.7%.