A study considered 437 individuals for eligibility based on age, of which 38 met inclusion criteria. From a contact list of 5409 unvaccinated individuals, 40 were included in the study after meeting criteria and not being duplicate entries. The study involved collecting samples from participants at three time points, with some dropping out between points due to refusal, getting vaccinated, or testing positive for COVID antibodies. In total, 35 participants completed the study and underwent statistical analysis.