Smallpox was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
https://ourworldindata.org/vaccination#vaccines-save-livesDiptheria was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Measles was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Mumps was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Pertussis was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Acute Poliomyelitis was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Paralytic Poliomyelitis was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Rubella was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Congenital Rubella Syndrome was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Smallpox was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job (oh, right, we already did that one).
Tetanus was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Hepatitis A was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Acute Hepatitis B was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Haemophilus Influenza Type B was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Pneumococca Disease was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Varicella was declining naturally. The medical took advantage of the natural decline, and made it look like their vaccines did the job.
Feel free to copy/paste any of the above whenever you want to argue against facts.