(1) a menu-driven telephonic input system, (2) a human-assisted, voice-based telephonic input system (not shown), (3) a voice-based, optionally telephonic, input system which processes reservations by voice-recognition means (not shown), (4) a human-assisted fax-based reservation input form (not shown), (5) a fax-based reservation input form processed by Optical Character Recognition (not shown), (6) an electronic-mail and/or paper-mail input means (not shown) optionally human-assisted and/or assisted by Optical Character Recognition means, (7) a paper-based means employing a human registrar (not shown) who will later enter the reservation into the database 12 via human interface device 16, (8) an optionally network-connected electronic patient care/medical records system (or other personnel records system, such as may be provided by a school, an employer, a government, and/or a military service) optionally capable of automatically selecting and/or reserving one or more vaccines (and/or providing data to computing system 14 to enable system 14 to optionally automatically select and/or reserve one or more vaccines, such as by employing a suitably operable database 12 and/or other software hosted on system 14) for one or more personnel, optionally based on individual personnel data contained in the medical (or other) records system, and/or the like.