👉 Yersinia is a bacterium that causes severe respiratory infections, including pneumonia, bronchitis, and tuberculosis. It can also cause other diseases such as cystic fibrosis, which affects the lungs, and typhoid fever. Yersinia is a member of the family Streptococcus, which includes many strains that are used in vaccine production for various diseases like measles, mumps, rubella, polio, and tetanus.
