Investors may have wondered why, when only a niche passive vaccine previously existed to prevent respiratory syncytial virus (RSV) infections, three new vaccines have been approved in the last year. RSV is a viral respiratory pathogen that causes life-threatening infections in premature babies so it is logical that falling global birth rates could have demoted RSV down the list of future lucrative unmet medical needs.
The explosion of new active RSV vaccines is in any event a triumph of modern drug discovery over an earlier...








