Recent studies have shown that some assumptions about cross-reactivity are not accurate. Which of the following statements has recent research shown to be NOT correct?
Penicillin-sensitive patients are highly likely to react to semisynthetic penicillins.
Penicillin-sensitive patients are highly likely to react to cephalosporins.
Once a drug stimulates an immune response, cross-reactions with other drugs within and between drug classes can occur.
How primary sensitization occurs is unclear.
