Gargled water tests might be feasible option in contrast to swabs for identification of COVID-19: Study Kumar Jeetendra | August 21, 2020 Gargled water samples might be a feasible alternative to swabs for detection of COVID-19, enabling easy self-collection and taking away the need for trained health care workers for sample collection, according to a study published at the ICMR’s Indian Journal of Medical Research. Adoption of gargle lavage for sample group will have a significant effect …