Udayavni Special

COVID-19: Saliva diagnosis cheaper, faster alternative to swab testing, say scientists


Team Udayavani, Aug 22, 2020, 1:31 PM IST

New Delhi: A low-cost saliva test that will enable people to collect their own samples with minimal discomfort, without invasive nasal or throat swabs, could well be the way forward to detect the novel coronavirus, say scientists.

Giving a thumbs up to the alternative testing technology that is yet to be introduced in India, scientists said it would deliver results faster and more accurately and also minimise the risk for healthcare workers collecting samples.

The saliva-based COVID-19 diagnosis offers an improvement over standard nasopharyngeal swab methods because people can collect their own samples with ease, simply spit into a sterile tube and mail it to a lab for processing.

“It is also unique because it does not require a separate nucleic acid (RNA) extraction step. This is significant because the extraction kits used for this step in other tests have been prone to shortages in the past,” A R Anand, senior associate professor at Chennai’s L&T Microbiology Research Centre, told PTI.

Noting that the ‘saliva direct’ test is easier to carry out, he said it needs only a few reagents and a real-time polymerase chain reaction (RT-PCR) machine.

Though saliva tests are yet to be approved in India for mass use, scientists such as Anand suggest the matter be explored further.

“A fast-tracked study should be conducted in an Indian setting comparing the saliva RT-PCR tests with the nasopharyngeal RT-PCR tests before large-scale implementation in our country,” Anand said.

An Indian Council of Medical Research (ICMR) scientist added that India is exploring the availability of kits and other aspects. “At present, no kit is approved in India,” he said on the condition of anonymity.

According to a recent study published in ICMR’s Indian Journal of Medical Research, gargled water samples may be another viable alternative to swabs for detecting COVID-19, enabling easy self-collection and removing the need for trained healthcare workers for sample collection.

 

Top News

Punjab CM to move Supreme Court against farm bills

COVID-19 recoveries in India cross 50 lakh mark

Yenchina feilding mareh!, tweets Star Sports after Pooran produces jaw-dropping superhuman effort to save a six

COVID-19: Senior Congress MLA H K Patil tests positive

US Election 2020: Trump and Biden to face off in first presidential debate tomorrow

Karnataka tourism policy eyes Rs 5,000 cr investment by 2025

COVID tally crosses 60 lakh; 1,039 more deaths




Related Articles More

From elbow ‘hi’ to separate entry-exit points: How Amitabh Bachchan is shooting ‘KBC’ amid COVID-19

COVID-19 recoveries in India cross 50 lakh mark

COVID-19: Senior Congress MLA H K Patil tests positive

Gratitude!: UK salutes COVID-19 warriors in Kannada, Konkani

COVID tally crosses 60 lakh; 1,039 more deaths

MUST WATCH

Mangaluru: Pro-farmer Organizations Protests over farm bills

Poor response to Karnataka Band in Udupi district

JD(s) workers clash with Police at Shimoga anti farm bill protest | Udayavani

Udupi: Protesters arrested for blocking road

Easiest Way to Grow Cucumber | Farming Guide in Kannada

Latest Additions

No conclusion reached in Rajput death case, all aspects being probed: CBI

Eminent critic writer Dr G S Amur passes away

IIT Hyderabad researchers develops AI-based technique to detect usage of mobile phones

Ford India launches doorstep service facility

India initiates probe against alleged dumping of pharma raw material by Chinese firms

Thanks for visiting Udayavani

You seem to have an Ad Blocker on.
To continue reading, please turn it off or whitelist Udayavani.