As one Freeper already posted, there’s no need for the infected to cross the border. Stationed along the key routes passing out candy or water bottles will do the trick.
On the darker side warfare uses the beliefs of opponents and innocents in aid. Again at key points station a few infected people garbed in robes with thorn crowns and bleeding eyes, aided by rumors of the Milagro de Sangre de Christo will have them on their knees waiting to touch his wounds and receive his blessing for the crossing to the promised land.
How many infected border jumpers do you think might get infected in, say a week or so?
Agree .....taint like herdin cats in the dark......:o)
Hope yer well ....Stay Safe !