From December 13 to 15, 2023, the International Medical Forum (IMF) “Ukrainian and Global Medicine: Basics, Reality, and Strategic Prospects” was held successfully. Within the framework of this forum, the 12th Christmas Readings on Immunology and Allergology were held. The event was dedicated to the 150th anniversary of the Shevchenko Scientific Society (SSS), the 125th anniversary of the Medical Commission of the SSS, and the 25th anniversary of the Department and Center of Clinical Immunology and Allergology. Event hosts were the Medical Commission of the Shevchenko Scientific Society and Danylo Halytsky Lviv National Medical University. Despite difficult times for Ukraine, the event did not lose its leadership positions in terms of the number of speeches and the diversity of the agenda, and the vast geography of speakers and specialist attendees distinguished it. More than 400 speakers, about 1,000 listeners, and more than 1,200 online participants participated in the event. During three days, international experts from the USA, Canada, UK, Italy, Spain, Denmark, Slovakia, Sweden, Germany, Austria, and Poland, and leading scientists and experts for Ukraine delivered more than 300 speeches.