Aida

AIDA stands for About Immunization: Dialogue and Advice. It is a chatbot built by health experts at UNICEF's Europe and Central Asia office for parents and caregivers who have questions about childhood vaccines and want answers from a source they can trust rather than from a comment thread.

The bot works through menus rather than free chat. You type "Aida" to begin, choose your language, pick a topic and then a question. The library covers more than 100 questions: what types of vaccines exist, when each should be given, what to do if a scheduled dose was missed, what is actually inside a vaccine, and what herd immunity means. UNICEF says the answers are approved by scientists and health experts, and the service is free and available around the clock. The same assistant also runs on WhatsApp.

Two limits are worth knowing. First, AIDA was made for one region, so it explains vaccination in general terms and does not know your country's official schedule; your pediatrician or local health service has the final word on what your child needs and when. Second, the interface comes in English, Albanian, Romanian, Russian, Serbian and Turkish only. If you read English comfortably, it is one of the few Telegram bots in this area with a named, accountable publisher behind it.