This is a pilot, cross-sectional, sample collection study to characterize the immune response and intestinal microbiota in people with and without SARS-CoV-1 antibodies and helminth infection.~A target sample size of 1500 participants aged 5 years or older will undergo a one-time blood and stool collection for SARS-CoV-2 antibody testing, diagnosis of parasitic infections, and experimental studies including transcriptomics (RNA) and microbiome (intestinal microorganisms) characterization. Participants willing to take part in the study will be selected from households in the Tiruvallur district, Tamil Nadu, India. Individual study participation involves a single study visit. Participants will be informed of the results of clinical testing and will be referred for medical care as appropriate.
This is a pilot, cross-sectional, sample collection study to characterize the immune response and intestinal microorganisms in people with and without COVID-19 antibodies and helminth infection.