Inclusion Criteria:

• Women aged 18 to 50 years registering for antenatal care (ANC) at Government Medical College Hospital (GMC) Nagpur, India
• * Estimated Gestational Age at registration \<14 weeks based on ultrasound report at the baseline study visit;
• * Intends to receive pregnancy, labor and delivery and neonatal care at GMC;
• * Plans to live within the city limits of Nagpur throughout their pregnancy and labor and delivery to facilitate access to GMC for evaluation of ILI and COVID-19 symptoms;
• * Willing to be contacted two times per week by call or text for ILI/ COVID-19 symptom screening and return to GMC for evaluation and an NP swab/evaluation if symptoms are reported;
• * Willing to take temperature with the provided digital thermometer, and maintain a symptom diary after training;
• * Willing to provide information on pregnancy and neonatal outcomes if care occurs outside GMC;
• * Willing to permit venous blood draws on at least 4 timepoints --1) Baseline study visit, 2)28-34 weeks, 3) 37 weeks - prior to delivery and 4) after delivery;
• * Willing to permit blood draws if hospitalized at GMC for COVID-19 infection;
• * Willing to consent to participate in the study

Exclusion Criteria:

• * Anyone who is deemed to have limited decision-making capacity as defined by Boston University IRB i.e. Substantial impairment of cognitive functions (e.g. attention, comprehension, memory, and intellect), or conditions that might affect their cognitive functions.
• * Anyone who is deemed to have limited capacity to consent as defined by Boston University Institutional Review Board (IRB) i.e. The ability to provide legally effective consent to enroll in a research study (AAHRPP definition).