The D|AX path P|A|TH P|AE|T P|A|T by B|IH which W|I|CH W|IH|SH W|I|SH an A|N agent A|JH|AX|N|T invades I|N|V|E + I|D|Z IH|N|B|E + I|D|Z I|N|B|E + I|D|Z IH|N|V|A|D|Z I|N|V|A|D|Z IH|N|B|A|D|Z I|N|B|A|D|Z IH|N|V|E + I|JH|Z I|N|V|E + I|JH|Z IH|N|B|E + I|JH|Z I|N|B|E + I|JH|Z IH|N|V|A|JH|Z I|N|V|A|JH|Z IH|N|B|A|JH|Z I|N|B|A|JH|Z IH|N|V|E + I|D|S I|N|V|E + I|D|S IH|N|B|E + I|D|S I|N|B|E + I|D|S IH|N|V|A|D|S I|N|V|A|D|S IH|N|B|A|D|S I|N|B|A|D|S IH|N|V|E + I|JH|S I|N|V|E + I|JH|S IH|N|B|E + I|JH|S I|N|B|E + I|JH|S IH|N|V|A|JH|S I|N|V|A|JH|S IH|N|B|A|JH|S I|N|B|A|JH|S a susceptible SH|AX|SH|EH|P|T|AX|B|AX|L S|AX|S|I|P|T|AX|B|AX|L SH|AX|SH|I|P|T|AX|B|AX|L host. HH|U|S|T HH|O|SH|T HH|U|SH|T Portal P|U|R|T|AX|L of O|V AH|B O|B entry I|N|T|R|I EH|N|T|R|IH I|N|T|R|IH