So, the Homeland Security Leviathan says they're underfunded for medical emergencies. If they enforced our border sovereignty, they'd be less concerned about Third World diseases running amok in our country.
The US Public Health Service, with its subordinate agencies the National Disaster Medical System (NDMS) and Centers for Disease Control (CDC), is the Federal agency actually charged with control of communicable disease. DHS would only act to enforce quarantines, which translates to "suspension of civil rights", "plague ghettos", and "forbidden zones". They have plenty of money, manpower, and repurposed military equipment for that mission.
Not another damned dime.