Answer:
At this visit, David should receive one dose of IPV, one dose of MMRV and one dose of DTaP.
Explanation:
During this visit David should receive 3 vaccines:
the last dose of IPV, which protects the kid against polio a disease that causes paralysis and death.
The last dose of MMRV, which protects the individual against rubella a disease spread through direct contact with an infected person and through the air.
The last dose of DTaP, a vaccine that prevents tetanus, a fatal disease that starts with difficulties to breath.