TABLE 5.
Neutralizing titer of five seropositive human sera
Serum no.a | Age | MN titer |
||||
---|---|---|---|---|---|---|
HK1/68 | Dar6/21 | Ck/481 | Ck/8520 | Ck/6673 | ||
1 | 52 | 160 | <10 | 10 | 40 | 10 |
2 | 53 | 320 | <10 | 20 | 40 | 10 |
3 | 59 | 320 | <10 | 20 | 40 | 10 |
4 | 55 | 5,120 | 80 | 80 | 160 | 40 |
5 | 57 | 2,560 | <10 | 160 | 640 | 160 |
Five human sera that were seropositive against any chicken H3N8 viruses.