Background: Below the Red Line is the main cause of death among children <5 years old. Indonesia is one of the countries that still have some nutritional problems such as malnutrition, short nutrition and over nutrition, leading to 54% of deaths among children under five years old. Toddlers aged 12-59 months in Surabaya are still suffering from malnutrition despite receiving health services from the puskesmas. That is caused by several factors influencing the mother's role in taking care of her children. Objective: This study aimed to determine the description of the Red Line incidence among children. Methods: The population in this study were 691 toddlers aged 12-24 months with 31 toddlers in Below the Red Line category in Puskesmas Wonokusumo, Surabaya. The sample was taken using a simple random sampling method. Data analysis was conducted using descriptive analysis with percentage and frequency distribution techniques. Results: The data showed that 69.8% of the mothers aged 21-30 years are classified in the healthy reproductive period. As many as 81.1% of them are unemployed, 49.1% graduated from elementary school, and 52.8% have adequate knowledge. Mothers’ age is one of the indirect factors. If they are classified in the young age, they are considered to be lacking knowledge about nutrition for their children. Therefore, children become vulnerable to experience malnutrition. Conclusion: Interventions towards factors that influence Below the Red Line incidence have been carried out to prevent and overcome the problem of nutritional status. This program is not optimal due to the lack of society understanding related to the importance of nutrition improvement programs and active participation in Pos Pelayanan Terpadu or Integrated Healthcare Centre (Posyandu), so the intervention has not gone well.

Background: Primary immunizations is a series of vaccination given to babies before the age of one, and it can actively increase immunity to diseases such as Hepatitis B, Poliomyelitis, Tuberculosis, Diphtheria, Pertussis, Tetanus, Pneumonia, and Meningitis caused by Hemophilus influenza type B, and measles. Family support is one of the essential factors for the completeness of immunization because it will encourage parents to immunize their children. The social support theory was used here since it assumes that the source of support from families such as parents, siblings, children, relatives, and partners provides examples for individuals to perform or suggest a positive behavior. Objective: This study aimed to determine the effect of family support on the provision of complete primary immunization at the Sidotopo Health Center in Surabaya. Methods: This research used a descriptive-analytic method with a simple random sampling of 54 respondents with a degree of significance (α=0.05). Sample inclusion criteria include mothers who have children aged 12-24 months, have a health card (KMS), and live around the area of Sidotopo Health Centre. The exclusion criteria are those who were not willing to be respondents. Results: The effect of family support on immunization has a significant value of 0.015 (P Value <0.05) on emotional support, while the support of appreciation, instrumental support, and informative support are not substantial (P Value>0.05). Conclusion: Family support for complete primary immunizations includes emotional support, appreciation support, instrumental support, and informative support. Overall, emotional support has a direct influence on providing immunization. Therefore, appreciation support, instrumental support, and informative support did not significantly affect immunization.