Using Arduino Nano as USB Host
V-USB is a software-only implementation of a low-speed USB device for Atmel’s AVR® microcontrollers


No host support here, sorry.
The USB host shield handles the hardware bit and simplifies the software bit. It is up to the firmware to support the various USB profiles. Version 2.0 of the library supports CDC with a few devices; check to see if they would be correct for your purpose.