Statutory Instrument 153B of 2021. Public Health (COVID-19 Prevention, Containment and Treatment) (National Lockdown) (No. 2) (Amendment) Order, 2021 (No. 25)by Government of Zimbabwein Legal - The Lawon Posted on June 18, 2021 Statutory Instrument 153B of 2021. Public Health (COVID-19 Prevention, Containment and Treatment) (National Lockdown) (No. 2) (Amendment) Order, 2021 (No. 25)