Which condition is treated during the administration of anthelmintics?

Anthelmintic agents are specifically designed to target helminths, which are parasitic worms such as roundworms, flatworms, and flukes. The administration of anthelmintics is effective for treating infections caused by these parasites, a condition collectively referred to as helminthic infections.

These infections can manifest in various ways, affecting different organ systems and can lead to anemia, malnutrition, and other health complications. Anthelmintics work by either paralyzing the worms, leading to their expulsion from the body, or by inhibiting their ability to reproduce or metabolize nutrients, ultimately leading to their death.

In contrast, the other options listed—conditions such as asthma, bacterial infections, and viral infections—are not treated with anthelmintics. Asthma is a respiratory condition that requires bronchodilators or corticosteroids, while bacterial and viral infections are treated with antibiotics and antivirals, respectively, rather than with medications designed to eliminate parasitic infections. Thus, helminthic infections are uniquely addressed by anthelmintic therapy, making it the correct answer.