All our lives we are surrounded by microorganisms. They have an ambivalent relationship with us, some help us, but others harm us. This book focuses on two groups that are most affected by the negative effect. They are bacteria and viruses. Most of us cook occasionally or daily. The book Natural Antibiotics and Antivirals in the Kitchen introduces plants and means of their daily use so that they become part of your diet and your lifestyle. In it you will find beneficial spices and mushrooms, different types of honey, healing vinegars and oils, but also specially formulated fermented foods that you can easily prepare yourself. In the plant world, there is a term phytoncides. These are defensive substances that plants use to prevent the growth of unwanted microorganisms. The goal of this book is to strengthen your immunity so that you become what plants are - a phytoncidal being that does not get diseases. We wrote it based on our own experience and knowledge. If, through it, we manage to increase your defenses, strengthen your body's immune system, it is primarily your merit.