Ключевые слова: bacteria, bacterial, blisters, contagious, cough, defense, fever, flu, immune system, infection, inflammation, lymph nodes, lymphatic tissue, mouth, nasal congestion, neck, pain, pharyngeal mucosa, pharynx, redness, secretion, sore throat, staphylococcus, streptococcus, swelling, throat, tonsillitis, tonsils, viral disease, viruses, white patches, whitish exudate,