Pass-through devices and flash firmware are no longer needed to read from external storage, which has caused a proliferation of all-in-one plug and play cards.
Laptop computers, conversely, offer portability that desktop systems (including small form factor and all-in-one desktops) can not due to their compact size and clamshell design.
Hygiene measures such as the use of an all-in-all-out policy and thorough disinfection of housing between batches should be employed to control disease.