1.Maternity and gynecology , women’s health ,and  medical research

Pregnant women are more susceptible to influenza virus infection due to physiological changes, so vaccination against influenza during pregnancy protects the health of the mother and fetus. In addition, extensive research indicates that inactivated and reconstituted influenza vaccines are safe for pregnant women, while live attenuated vaccines are not recommended. Methods: The cross-sectional study design was utilized and carried out at the antenatal outpatient clinics at the National Guard Women's Health Hospital (Riyadh). A convenient sample of 300 pregnant women, and data collection a through a self-administered questionnaire distributed to pregnant women using a paper-based standard Arabic questionnaire consisting of four sections, the first section asked about demographic data, the second section questionnaire about knowledge of influenza vaccine, the third section about attitude, and the fourth section asked about practice regarding seasonal influenza vaccine. Results: The results denoted that mean age 32.64 6.52 years old, more than half of the study sample (53 %) had university education. Also, more than half (57.7) are not willing to take influenza vaccines during pregnancy . Regarding the level of knowledge, the result shows that 53.3% demonstrated insufficient knowledge, 58.7% had a positive attitude, and 69 had Satisfactory level of practice. Also, there is no statistically significant difference between level of knowledge categories and the level of attitude (0.98) and statistically significant difference between level of knowledge and the parity (0.04), While there is statistically significant difference between level of knowledge categories and the practice level (0.02) toward seasonal influenza vaccination among pregnant women. Conclusion and Recommendation: The study highlights critical gaps in knowledge and varying attitudes towards seasonal influenza vaccination among pregnant women. Recommendations educational interventions and healthcare provider engagement are essential to enhance vaccination rates and protect maternal and fetal health. include Educate and integrate counseling to boost vaccination and improve outcomes.