Too frequent hand washing is also considered one of the symptoms of Obsessive Compulsive Disorder (OCD).
Hiyo ni kusema kwamba, popo huenda sio wabebaji wa karibu wahifadhi wa SARS-CoV-2 isipokuwa iwapo virusi vya CoV vya popo vinavyokaribia kufanana vitapatikana katika siku zijazo.