Corrections and Clarifications

Cytochemical Assay of Interferon Produced by Duck Hepatitis Virus

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Science  29 Mar 1963:
Vol. 139, Issue 3561, pp. 1275
DOI: 10.1126/science.139.3561.1275-b


In the report by E. A. Sueltenfuss and Morris Pollard, "Cytochemical assay of interferon produced by duck hepatitis virus" [Science 139, 595 (15 Feb. 1963)] the first sentence of the last paragraph (column 2, page 596) contains a misplaced line. It should have read: "DHV-interferon interrupted psittacosis virus at the "red ball," noninfectious stage of replication."