abstract virus strain model novel coronavirus disease 2019-ncov with woman and man in suit with blue medical face mask on china

deadly disease control pathogen medical danger pandemic usa wuhan corornavirus hazard virus strain text respiratory contagion stop coronavirus merscov infection careful global world sars china flu epidemic outbreak pneumonia chinese protection concept bacteria risk quarantine information 2019ncov detected attention blue biohazard vaccine contamination abstract mers infected corona caution prohibition syndrome