Hi Nicki,
I just saw this question now as this thread was quoted in the article that colleagues from Save the Children wrote in the Journal of Human Lactation:
Burrell A, Kueter AM, Ariful S, Rahaman H, Iellamo A, Mothabbir G. Appropriate Infant and Young Child Feeding Practices in an Emergency for Non-Breastfed Infants Under Six Months: The Rohingya Experience. J Hum Lact. 2020 Aug;36(3):510-518. doi: 10.1177/0890334420906838. Epub 2020 Mar 13. PMID: 32167844.
The lack of practical guidance for relactation and wetnursing in emergency contexts is highlighted in that aforementionned article.
I am sharing here a couple of pages I wrote on the subject in 2008 when I was working as a nutritioinist in the camps with UNHCR:
Sfeir, Y. (2008). Wet nursing for refugee orphans in Bangladesh. Field Exchange, 32, 25. https://www.ennonline.net/fex/32/wet
My answer to your question is late, looking at the date you asked this; I thought to write in case others might bump into this page and need more info.
Yara