Table 6. Nonsynonymous (Ka) vs. Synonymous Mutations in the Coding Region of HPIV-1 Genes.

Region	Positions	Average Ka	Average Ks	Ka/Ks
N Gene	120–1694	0.002	0.060	0.040
P Gene	1844–3550	0.014	0.061	0.233
M Gene	3669–4715	0.002	0.067	0.034
F Gene	5088–6755	0.004	0.062	0.071
HN Gene	6903–8630	0.011	0.057	0.185
L Gene	8772–15443	0.002	0.060	0.041
ALL GENES	1–15606	0.005	0.060	0.083