Handbook for practical classes in Microbiology, Virology and Immunology for classroom and extracurricular work of English-speaking students. It can be used to prepare for practical classes, current control of knowledge, final modular control of the subject. The manual is an intellectual property and may not be copied or reproduced in whole or in part, except in manuscript form, without the written permission of the authors. Copyright is protected by the Law of Ukraine “On Copyright and Related Rights”.