Which statement about head lice is true?

Which statement about head lice is true?

• A. It is spread by close person-to-person contact and it is mostly a nuisance infection
• B. It is spread by airborne droplets and causes serious illness
• C. It is prevented by vaccination
• D. It only affects adults

Answer: (A)

The main idea is how head lice spread and what health impact they have. Head lice move by direct head-to-head contact, which is common among children who are close together or share hats, combs, or pillows. Because of this mode of transmission, lice are considered a nuisance—causing itching and discomfort—but they don’t carry or cause serious illness. There’s no vaccine to prevent head lice, so prevention focuses on avoiding sharing personal items and promptly treating anyone who’s infested. Also, head lice can affect both children and adults, so it isn’t accurate to say they only affect adults.

The main idea is how head lice spread and what health impact they have. Head lice move by direct head-to-head contact, which is common among children who are close together or share hats, combs, or pillows. Because of this mode of transmission, lice are considered a nuisance—causing itching and discomfort—but they don’t carry or cause serious illness. There’s no vaccine to prevent head lice, so prevention focuses on avoiding sharing personal items and promptly treating anyone who’s infested. Also, head lice can affect both children and adults, so it isn’t accurate to say they only affect adults.