Final answer:
The recommended treatment for latent syphilis lasting less than 1 year is parenteral penicillin G (such as long-acting benzathine penicillin). Other options include tetracycline and doxycycline.
Step-by-step explanation:
Treatment for latent syphilis lasting less than 1 year:
The recommended treatment for latent syphilis lasting less than 1 year is parenteral penicillin G. Specifically, long-acting benzathine penicillin is often used. It is important to note that the exact choice of treatment depends on the stage of the disease. Other options include tetracycline and doxycycline.