Journal article

A vaccine cold chain freezing study in PNG highlights technology needs for hot climate countries

Theo Wirkas, Steven Toikilik, Nan Miller, Chris Morgan, C John Clements

VACCINE | ELSEVIER SCI LTD | Published : 2007

Abstract

Fourteen data loggers were packed with vaccine vials at the national vaccine store, Port Moresby, Papua New Guinea (PNG), and sent to peripheral locations in the health system. The temperatures that the data loggers recorded during their passage along the cold chain indicated that heat damage was unlikely, but that all vials were exposed to freezing temperatures at some time. The commonest place where freezing conditions existed was during transport. The freezing conditions were likely induced by packing the vials too close to the ice packs that were themselves too cold, and with insufficient insulation between them. This situation was rectified and a repeat dispatch of data loggers demonstr..

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