Impulsor del Servei d'Epidemiologia Internacional, el Centre Mundial de Documentació en Salut Pública i d'UNICEF, Rajchman mereix un reconeixement que mai ha rebut.
The last two decades have witnessed the widespread use of genetic testing in courtrooms, to identify criminals from biological remains, determine paternity or identify corpses. Less is known, however, about expert reports based on the use of molecular phylogenies. Such reports are founded on studies
«The time has come to close the book on infectious diseases. We have basically wiped out infection in the United States». These optimistic words were addressed to the United Nations General Assembly in 1966 by William H. Stewart, the Surgeon General of the United States (leading spokesperson on matters of public health).