This guide focuses on implementing an efficient cold chain and sample
transport/storage plan appropriate for PREDICT disease surveillance activities. It is
intended to support PREDICT training protocols for Bat and Rodent Sampling,
Bushmeat Sampling, and Non-human Primate Sampling. The guidance provided is
to ensure that all PREDICT materials arrive at their end laboratories in suitable
condition for PREDICT diagnostics and pathogen testing.
A cold chain is a monitored temperature-controlled supply chain. The goal of the cold
chain is to keep a sample or material within a certain temperature range during all
stages of delivery, processing and storage (Figure 1). Cold chains are widely used to
ensure the viability of products in the pharmaceutical and agricultural sectors, and
are critical components of vaccination programs and bio-medical surveillance
activities.
Many biological samples deteriorate when exposed to heat, sunlight, or fluorescent
light. When transporting and storing such biological substances, it is imperative that
field and laboratory teams control environmental conditions, ensuring that exposure
to potentially damaging environmental factors is minimized.