inclusion criteria: * man or woman age 18-75 years * sars-cov2 positive as confirmed by sars-cov2 rt-pcr test * diagnosed with pnumonia as confirmed by chect radiography and history of fever, coug with one of the following symptoms: rr \> 30x per minute, sao2 93%, fao2/fio2 300 mmhg * voluntarily joined the clinical trial and has signed the informed consent form

inclusion criteria: * man or woman age 18-75 years * sars-cov2 positive as confirmed by sars-cov2 rt-pcr test * diagnosed with pnumonia as confirmed by chect radiography and history of fever, coug with one of the following symptoms: rr \> 30x per minute, sao2 93%, fao2/fio2 300 mmhg * voluntarily joined the clinical trial and has signed the informed consent form

inclusion criteria: man or woman age 18-75 years sars-cov2 positive as confirmed by sars-cov2 rt-pcr test diagnosed with pnumonia as confirmed by chect radiography and history of fever, coug with one of the following symptoms: rr > 30x per minute, sao2 93%, fao2/fio2 300 mmhg voluntarily joined the clinical trial and has signed the informed consent form

inclusion criteria: man or woman age 18-75 years sars-cov2 positive as confirmed by sars-cov2 rt-pcr test diagnosed with pnumonia as confirmed by chect radiography and history of fever, coug with one of the following symptoms: rr > 30x per minute, sao2 93%, fao2/fio2 300 mmhg voluntarily joined the clinical trial and has signed the informed consent form