Joseph Lister and Louis Pasteur developed methods to prevent:

Joseph Lister and Louis Pasteur developed methods to prevent:

• A. Cancers
• B. Infections
• C. Allergies
• D. Obesity

Answer: (B)

Preventing infections through antiseptic and sterile techniques is the main idea. Pasteur showed that microorganisms cause disease, which led doctors to focus on stopping microbes from causing harm. Lister then put these ideas into practice by using antiseptics to clean wounds, instruments, and operating rooms, creating sterile conditions in surgery. This combination dramatically reduced infection after procedures and established modern methods to keep patients safe from microbial invaders. Cancers, allergies, and obesity are not addressed by antiseptic and aseptic methods, so infection prevention is the appropriate focus here.

Preventing infections through antiseptic and sterile techniques is the main idea. Pasteur showed that microorganisms cause disease, which led doctors to focus on stopping microbes from causing harm. Lister then put these ideas into practice by using antiseptics to clean wounds, instruments, and operating rooms, creating sterile conditions in surgery. This combination dramatically reduced infection after procedures and established modern methods to keep patients safe from microbial invaders. Cancers, allergies, and obesity are not addressed by antiseptic and aseptic methods, so infection prevention is the appropriate focus here.