About head lice infestations

Which of the following statements is true regarding head lice infestations?

• A) Females are more likely affected.
• B) Retreatment with pyrethrin is rarely needed.
• C) Head lice can live off the body up to 1 week.
• D) Low socioeconomic children are more likely affected.
• E) Dogs are a common vector for head lice.

The answer is:  ( A ).

Head lice are thought to be the most common type and are developing resistance to commonly used pediculicides. Every year, between 6 million and 12 million people in the United States, primarily children 3 to 10 years of age, are infested with head lice. Girls are at greater risk because..............

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