Ready to participate?

If you are eligible and willing to participate, please click the link below and a SOLARS team member will reach out to you shortly!


You are eligible to participate if you:

  • Are pregnant with only one baby (we are unable to enroll women carrying twins or other multiple pregnancies at this time)
  • Are 13 years-of-age or older
  • Self-identify as Black/African/African-American or Hispanic/Latina
  • Are English and/or Spanish speaking
  • Are less than 21 weeks gestation/pregnant based on an ultrasound
  • Live, work, or receive care in Oakland, Alameda, Emeryville, San Leandro, Berkeley, or San Francisco and is a resident of Alameda or San Francisco County*
  • Are willing to participate in the survey and minimum biospecimen collection (blood, urine, & salivary swab) components of the study at all prenatal and postnatal time points (11 to 14 weeks of gestation (if identified prior or during this time point), 15 to 20, 24 to 26, and 30 to 32 weeks of gestation as well as 5 to 6 weeks and 6 months after delivery).

*If you reside outside of Alameda or San Francisco County and receive care in these areas, you may still be eligible if willing to have specimens collected at our site in Oakland or San Francisco.

You are not eligible to participate if:

  • You are a surrogate mother (a person who acts in the place of another person's biological mother)
  • Your pregnancy is a result of assisted reproductive technology (in vitro fertilization, insemination)
  • If you’ve been treated in the past year for:
    • Bi-polar disorder
    • Psychosis



Woman who participate will receive up to $280 in compensation for their time. Women receive $30 in compensation at each prenatal collection period (up to four total) and $40 in compensation at each postnatal collection period (up to two total). Compensation requires completion of survey data and the collection of blood, urine, and saliva. Women who contribute additional biospecimens for themselves or their babies receive additional compensation at a rate of $10 per prenatal visit and $20 per postnatal visit (see below for specific details by time point).


Timepoint 1:

11 - 14 weeks pregnant (plus 6 days)


Timepoint 2:

15 - 20 weeks pregnant (plus 6 days)


Timepoint 3:

24 - 26 weeks pregnant (plus 6 days)


Timepoint 4:

30 - 32 weeks pregnant (plus 6 days)


Timepoint 5:

5 - 6 weeks postpartum (after delivery)


Timepoint 6:

6 months postpartum (after delivery)



Total across time periods with required data and biospecimens:

Total with optional biospecimens* across all time periods:



*An additional $10 will be provided to women at each prenatal visit who opt-in for any additonal biospecimen collection including nasal and vaginal swabs. An additional $20 will be provided to women at each postnatal visit who opt-in for any additional biospecimen collection for she or her baby including maternal nasal and vaginal swabs or breastmilk, baby urine, or baby feces.If you have any questions, comments or concerns, please feel free to contact us at 510-543-1817.

This study is voluntary and women can stop their participation at any time.