Staying Healthy Cold & Flu Cold Ways to Prevent Infections This Winter When it comes to avoiding viruses, pediatricians say that these are four essentials. By Sharlene K. Johnson Published on October 26, 2014 Share Tweet Pin Email Trending Videos 01 of 05 Vaccines In addition to making sure your child has a flu vaccine, keeping her up-to-date with all her regular immunizations will protect her from pneumonia, meningitis, ear infections, and whooping cough. 02 of 05 Clean Hands Alexandra Rowley Wash them often -- especially before eating or after coughing or sneezing. Tell your child to scrub with soap or use alcohol-based hand gel. Also teach her to keep her hands away from her face so she won't transmit germs into her eyes, nose, or mouth, says pediatrician and Parents advisor Ari Brown, M.D. 03 of 05 Hand Hygiene Basics 04 of 05 Good Food Fancy Photography/ Veer Serve a variety of fruits, veggies, whole grains, dairy products, and other nutritious foods. If your child gets less than 400 IU of vitamin D daily from her diet, she should take a supplement. A vitamin D deficiency could increase the risk of many illnesses, including a cold and flu. 05 of 05 Sleep Well-rested children are less likely to get sick, so make a regular bedtime non-negotiable. A lack of sleep can disrupt the function of white blood cells called T cells, which play an important role in helping fight off infections. Originally published in the November 2009 issue of Parents magazine. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit