close up kid face looking tired from chest coughing wearing face mask for protect pm2.5,head short loney child boy with sad face

2019ncov allergic allergy biochemical boy breathe cancer care caucasian child childhood china corona coronavirus covid19 disease dust epidemic face family fever flu health home ill illness individual infection influenza kid mask medical mouth n95 outbreak patient pm2 pollution protection quarantine safety sickness son spread symptoms toddler treatment tried virus wuhan