"HCG Found in WHO Tetanus Vaccine in Kenya Raises Concern in the Developing World"
https://www.scirp.org/journal/paperinformation.aspx?paperid=81838
https://archive.ph/URRca
"Tetanus Vaccine May Be Laced with Anti-Fertility Drug. International/Developing Countries. Vaccine Wkly, 9-10."
https://scirp.org/reference/referencespapers.aspx?referenceid=2195999
https://archive.ph/qOBUR
PubMed - "Tetanus vaccine may be laced with anti-fertility drug. International / developing countries"
https://pubmed.ncbi.nlm.nih.gov/12346214/
https://archive.ph/we4sw
(post is archived)