covid-19 pandemic coronavirus close up woman mask hand showing alcohol gel sanitizer dispenser against 2019-ncov. antiseptic,

2019 2019ncov 2020 alcohol antibacterial antiseptic bottle clean corona coronavirus covid covid19 disease disinfect disinfecting dispenser doctor epidemic face flu gel germs girl hand health hygiene infection influenza liquid mask outbreak pandemic people person prevention protection protective quarantine sanitizer sars sarscov2 sick surgical travel using virus wash woman asymptomatic crisis curfew herd immunity high alert immune increase cases infected isolated lockdown negative positive safe safely second wave shutdown social distancing spreads state of calamity symptomatic symptoms vaccine