H1N1 Vaccine. She expects that the side effects and risks of the H1N1 vaccine will be similar to the standard flu vaccin. Patients at high risk, such as pregnant women and children greater than 6 mo are high priority for vaccine. Simple ways to prevent H1N1 spread includes spreading out when kids are in tight spaces/lines, and sneezing into the crook of your elbow, and wash your hands frequently. Dr Cornelia Dekker. Pediatric ID, Stanford Univ.