I was wondering if someone with experience on the subject could comment - even very generally - on daily arrival patterns of individuals (children) seeking routine immunizations (WHO-EPI vaccines) at health clinics in low and middle income countries? Are these pretty steady throughout the day or do there tend to be more arrivals at certain times of the day compared to others? Are there differences in these patterns depending on geographic location (urban, rural, etc.) and on time of the month/year? In adddition to anecdotal evidence, can anyone point me to any academic or other studies with data or findings that might provide information on this?
Thanks much for any pointers - I am working with some colleagues to try and mathematically model immunization processes at health clinics and an important step in this is to try and understand how daily demand arises over time.