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| navigate by keyword : background bad beard bearded body brutal cold concept coronavirus cough epidemic fever first flu headache health hipster hospital illness immune immunity infected infection just man medication more pain pandemic pathogen patient regulate regulation response sick sneezing suffer symptom syndrome system temperature than thermal treatment virus yellow |
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| Immune response. Bearded man sick. Cold flu concept. Body temperature. Fever and thermal regulation of immunity. More than just symptom of illness. Headache virus symptom. First symptom. Suffer pain. |
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