Screening is effective for preventing and decreasing deaths from colorectal cancer. There is insufficient evidence to recommending treating or preventing tetanus with vitamin C. Corrosion engineering is the field dedicated to controlling and preventing corrosion. The company accomplishes this by preventing or limiting resale. Violence is seen as a way of ensuring compliance and preventing rebellion. Vaccination is a cheap and effective way of preventing infections by viruses. The drug was crucial in preventing infections in skin grafts. An inactivated vaccine was developed that proved effective in preventing disease. Data cleaning is the process of preventing and correcting these errors. One defense mechanism that some researchers believe is effective at preventing infidelity is jealousy. Vitamin supplementation does not appear to be effective at preventing cancer. The antibiotic doxycycline is effective in preventing leptospirosis infection. Experts disagree on whether restraining orders are effective in preventing further harassment. Cholera vaccines are vaccines that are effective at preventing cholera. Adequate fluid intake is helpful in preventing constipation.