Took lessons from swine flu outbreak, devised 'intelligent testing strategy' against COVID-19: ICMR

The government devised an "intelligent testing strategy" and scaled up its preparedness to fight the COVID-19 pandemic, taking lessons from the 2009 swine flu outbreak that had "exposed glaring gaps" in the country's diagnosis infrastructure, the ICMR said on Monday.

The apex health research body said to cater to the increasing need for testing, India developed an "intelligent testing strategy to remain ahead of the virus" by significantly shoring up its diagnosis infrastructure.

The country now has 610 laboratories -- 432 public and 178 private which are currently testing 1.1 lakh samples daily. The testing capacity has been increased to 1.4 lakh samples per day, which is being further raised to 2 lakh, it said.

Keeping in view the revised understanding of the virus and the research work being done in India and elsewhere, testing criteria was widened to include returnees from abroad, migrant labourers and COVID-19 frontline workers.

Most states have been working with the National Tuberculosis Elimination Program (NTEP) to deploy TrueNAT machines for COVID-19 testing. Through this machine, testing is done in such areas/ districts where modern virological laboratory in private or public doesn't exist, the Indian Council of Medical Research (ICMR) said.

"Due to this, the testing infrastructure is not overwhelmed in any state to date. No state has a significant backlog of samples to be tested. More labs are being set up and additional machines are deployed in states like Uttar Pradesh, Bihar, West Bengal as well as in the rest of the country to meet the possible higher requirement," it said.

"A decade ago, when India witnessed one of the worst flu pandemics -- swine flu in 2009 -- the public health system was paralyzed due to severe dearth of infrastructure for molecular diagnosis of viral infections... public health professionals helplessly watched the pandemic quickly escalating to all parts of the country," the ICMR said.

Though the country was equipped to carry out serology-based ELISA or rapid blood tests, the virus was challenging and could not be detected in the blood.

Molecular virological test was the only option for detection of H1N1 and it was available only in two institutions -- National Institute of Virology (NIV), Pune, and National Centre for Disease Control (NCDC), Delhi, it said.

"The event was an eye-opener for the public health system of the country wherein glaring gaps in testing capacity were brought out," the health research body said adding that this, in turn, paved the way for strengthening molecular diagnostic facilities for viruses in India through the Virus Research & Diagnostic Laboratory (VRDL) Network.

"Contrary to 2009, in January 2020, when the threat of COVID19 epidemic knocked at our doors, the government could immediately scale up its preparedness by standardizing diagnostic assays at ICMR NIV, Pune, and immediately commissioning diagnostic facility in 13 VRDLs based on their location in cities with International airports."