Top: add that AIDS attacks brain as well as immune system.
Footnote 6. OK.
page 9. Footnote 9. I prefer you say, instead:
"Although no example of aerosol transmission of HIV has been documented, Joshua Lederberg cautions that AIDS patients
with tuberculosis and terminal pneumonia are another potential hazard. (Ref. my Soc. Res. article). In view of the grave consequences
of pneumonic dissemination, should it occur, more research is urgently needed on the emission of HIV accompanying such disease"