Final answer:
The most effective way to avoid parasitic infections is by thoroughly cooking meat, practicing good hand hygiene, and consuming clean water and properly washed produce.
Step-by-step explanation:
The most effective method of avoiding parasitic infections is through thoroughly cooking meat. However, other important preventative measures that should be taken include washing hands before eating or preparing food and avoiding drinking untreated water. For raw fruits and vegetables, these should be thoroughly washed before consumption to remove any potential pathogens. Using clean utensils and sanitized countertops when preparing food can also help to minimize the risk of infection. Vaccinations and public health education play key roles in preventing waterborne diseases, which can also be caused by parasites.