Additional regulations amending the International Sanitary Regulations : in particular with respect to disinsecting [sic] of ships and aircraft and international certificates of vaccination or revaccination against yellow fever and against smallpox.

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Additional regulations amending the International Sanitary Regulations : in particular with respect to disinsecting [sic] of ships and aircraft and international certificates of vaccination or revaccination against yellow fever and against smallpox. Public Domain Mark. Source: Wellcome Collection.