TABLE 2 

Percent identity of hemagglutinin amino acid sequence of 1977 isolates compared to selected strains from late 1950sa

TABLE 2 
  • a The human HA amino acid sequences were downloaded from the NCBI Influenza Virus Resource database. Strains were aligned using MAFFT, and the resulting alignment was visualized and annotated in Jalview. Jalview was used to calculate a pairwise alignment to determine percent identities between the sequences, which are listed in the table. The 1977 strains are more similar to strains from Albany (NY), Rome (Italy), and Fort Leonard Wood (MO), than the original reference Fort Warren (NJ) 1950 strain, highlighted in yellow. The name of the influenza virus strain as it appears in the NCBI Influenza Virus Resource database is listed in the left column. The locations are abbreviated as follows: Alb, Albany; FLW, Fort Leonard Wood; T, Tientsin; FW, Fort Warren.