Page 17 - WHO
P. 17
2018
Sites September October November December
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WPV1 512 Under process
VDPV2 NVEP+SL1
SL1
P1-Dis
Negtive NVEP+SL3
NPEV NVEP+SL1+SL3
SEL SL1+SL3
Strengthening reverse cold chain
In Sudan, health officials are quite familiar with reverse cold chain management. They have
been sending samples on a regular basis and training levels are quite high. However, in other
countries in the region, like Somalia, or Yemen, there are more problems with ge�ng good
samples to the lab. By adding logtags, we’re hoping to learn in more detail what is going well
and what could go even be�er in Sudan. Once we know, we can apply the lessons in other
countries too.
A logtag is simply a small device that tracks the temperature of stool samples that are being
sent from the field to the na�onal polio lab. Stool samples that need to be tested must also be
kept at a certain temperature. But because the direc�on is reversed and they go from the field
to the lab, it’s called reverse cold chain.
Although the project was started in 2018, there was issues on capacity of staff, quality of log
tag device and coverage of the project.
WHO country office worked with FMOH and CDC in order to fill the gaps and start the project
with robust planning and lesson learned from ini�al phase.
