Columbia subject headings:
Central nervous system--Infections--Immunological aspects--Congresses.
Virus diseases--Immunological aspects--Congresses.
Harvard subject headings:
Central nervous system--Infections--Immunological aspects--Congresses.
Virus diseases--Immunological aspects--Congresses.
Princeton subject headings:
Central nervous system--Infections--Immunological aspects--Congresses.
Virus diseases--Immunological aspects--Congresses.