A Pearson’s Chi-squared test (χ² test) showed statistically significant associations (P = <0.05) in two symptoms (fever and headache) between the vaccinated and non-vaccinated groups (Table 4). Additionally, no cough symptom was reported for the vaccinated group compared to 51% (150/297). There was a decrease in fever in the vaccinated group (from a mean of 163 [55%] to 25 [32%], P = <0.001) and in headache from (a mean of 81 [27%] to 6 [8%], P = <0.001). No other statistically significant associations are observed with other symptoms between the two groups. For instance, a mean of 13 (17%) for both SOB (P = 0.421) and muscle pain (P = 0.284), 7 (9%) for nausea/vomiting (P = 0.703) for the vaccinated group compared to a mean 39 (13%), 66 (22%) and 31 (10%) in the non-vaccinated group respectively.