HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Kendal, A. P. Articles by Allan, W. H. Search for Related Content PubMed PubMed Citation Articles by Kendal, A. P. Articles by Allan, W. H. Agricola Articles by Kendal, A. P. Articles by Allan, W. H.

Antigenic Relationships in Avian Influenza A Viruses: Identification of Two Viruses Isolated from Turkeys in Great Britain during 1969–1970

C. R. Madeley

Central Veterinary Laboratories, Weybridge, England, and Department of Clinical Virology, St Thomas's Hospital Medical School, London S.E.1

The neuraminidase (E.C. 3.2.1.18 [EC] ) of A/TURKEY/ENGLAND/69 is related antigenically to the neuraminidases of A/TURKEY/MASSACHUSETTS/65 and A/TURKEY/ENGLAND/66 avian influenza viruses, and to an A 2/1957 human influenza virus.

The neuraminidase of A/TURKEY/SCOTLAND/70 is related antigenically to the neuraminidases of A/DUTCH and virus ‘N’ (isolated before 1930 and in 1949 respectively), thus demonstrating the recurrence of a neuraminidase antigen in avian influenza A viruses over a period of at least 40 years.

The haemagglutinins of A/TURKEY/ENGLAND/69 and A/TURKEY/SCOTLAND/70 did not cross-react specifically with each other, or with viruses representing four known avian influenza A haemagglutinin prototypes.

^* Present address: School of Public Health, University of Michigan, Ann Arbor, U.S.A.

Present address: Institute of Virology, University of Glasgow, Scotland.

Received 9 December 1970; accepted 2 June 1971.