Multiple realities(covers information from several alternate timelines)
Inoculation was the introduction of a serum, vaccine, or antigenic substance into the body to produce or boost immunity to a specific disease, or radiation form.
In 2063, Dr. Beverly Crusher said that the USS Enterprise crew would need to be inoculated against theta radiation coming from the Phoenix's throttle assembly. (Star Trek: First Contact)
In 2152, Phlox inoculated the entire Enterprise NX-01 crew to prevent an outbreak of Rigelian fever after Crewman Fisher came down with the disease on Tessik Prime. (ENT: "Dead Stop")
Later that year, Phlox warned Charles Tucker III that an inoculation he was going to administer against a lymphatic virus would cause headache, nausea, and diarrhea, although they'd only last a few days. (ENT: "The Seventh")
In 2153, Jonathan Archer ordered a supply of trellium to be stored in a bio-hazard locker until Phlox had found a way to inoculate T'Pol against its effects. (ENT: "Impulse")
In 2267, Nancy Hedford blamed Starfleet Medical for not having given her the proper inoculations against Sakuro's Disease before she had contracted it on Epsilon Canaris III. (TOS: "Metamorphosis")
In 2371, after seventy-four hours' work, The Doctor successfully created an inoculation that stopped the spread of an outbreak of Parinisti measles before it became an epidemic. (VOY: "Heroes and Demons")
In 2372, visitors to Cardassia had to receive more than a dozen inoculations before leaving for the planet, because a Klingon invasion of the planet had unleashed a variety of diseases there. (DS9: "Return to Grace")
In 2373, The Doctor quarantined the USS Voyager's mess hall in order to inoculate those within from the effects of a macrovirus. (VOY: "Macrocosm")
In 2374, arithrazine was used to inoculate Voyager rescue team members on a mission to destroy Omega molecules. (VOY: "The Omega Directive")
In 2375, The Doctor developed an inoculation which temporarily prevented a Voyager away team's cells from absorbing theta radiation poisoning aboard a Malon export vessel. (VOY: "Juggernaut")
Soon after, the USS Equinox's EMH claimed that he had been authorized to inoculate Rudolph Ransom and his crew against a mutagenic virus. (VOY: "Equinox")
In an alternate timeline in this year, The Doctor inoculated Voyager's crew against exposure to chroniton radiation from Krenim chroniton torpedoes. (VOY: "Before and After")
In 2376, The Doctor inoculated the Voyager crew against neutron radiation from a class 9 neutronic wavefront. (VOY: "Fair Haven"
In 2378, The Doctor inoculated a Voyager away team from antimatter radiation on Uxal. (VOY: " Friendship One"