Maintaining cold chain is one of the very few important activities that should be conducted, without any exception, by all concerned in the manufacturing of vaccines and delivery of immunization services
Kusunga unyolo wozizira ndi chimodzi mwazinthu zofunika kwambiri zomwe ziyenera kuchitidwa, popanda kusiyanitsa, ndi onse okhudzidwa popanga katemera ndi kupereka chithandizo cha katemera 