摘要:Representatives of the WHO influenza programme recently proposed a standard method of determining neuraminidase activity and neuraminidase inhibition (NI) antibody titres. Logit transformation of the data obtained with the WHO method for the NI assay permits a more efficient performance of the test and easy calculation of titres with a computer programme. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (168K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 233 234