Head of epidemiology and communicable diseases at Indian Council of Medical Research Dr Raman R Gangakhedkar said 80 out of 100 infected people do not show any symptoms.
During a briefing on the COVID-19 situation, joint secretary in the ministry Lav Agarwal also said about 2.94 per cent of the active COVID-19 cases needed oxygen support, 3 per cent needed intensive care units (ICU) and 0.45 per cent required ventilator support.
Head of Epidemiology and Communicable diseases at the ICMR Dr Raman R Gangakhedkar said the apex health research body will begin a study on the effectiveness of the vaccine against coronavirus infection next week.
These testing kits will be used for surveillance and to monitor whether coronavirus hotspots in the country are increasing or decreasing.
Addressing a press briefing, Health Ministry's Joint Secretary Lav Agarwal said the government has taken early preemptive action to identify COVID-19 hotspots in the country.
"Rigorous contact tracing is on across the 17 states which have reported cases related to Tablighi Jamaat congregation," the health ministry official said.
Joint secretary in the ministry Lav Agarwal said 149 new COVID-19 cases, including two deaths, have been reported since Friday. Combined efforts are on to ensure 100 per cent lockdown and that social distancing gets implemented, he said at a press briefing on the current COVID-19 situation in India.
At the same, it said the latest figures do not establish a clear trend and in no way the government is relaxed about anything at this point.
At present only government labs are permitted to do the test and the Centre is making arrangements to nearly double its capacity to test for the respiratory ailment. According to Health Ministry officials, around 60 accredited private laboratories are likely to be given permission to conduct the tests soon.
Joint Secretary in the health ministry Lav Agarwal said 154 new positive cases of the disease have been reported due to the transit-related history of those who attended the Tablighi Jamaat congregation. These include 23 new cases from Jammu and Kashmir, 20 from Telengana, 18 from Delhi, 65 from Tamil Nadu, 17 from Andhra Pradesh, nine from Andaman and Nicobar Islands and two from Puducherry.
Agarwal said that the current 'R0' or R naught for the coronavirus infection is somewhere between 1.5 and 4.
Addressing the daily press briefing on the actions taken, preparedness and updates on COVID-19, Joint Secretary in the Ministry of Health Lav Agarwal said 92 new cases and four deaths due to coronavirus have been reported in India since Sunday, taking total cases to 1,071 and the number of deaths to 29.
Talking about the Tablighi Jamaat congregation, Agarwal said, "If the Tablighi Jamaat incident had not taken place and we compare the rate of doubling -- that is in how many days the cases have doubled, we will see that currently it is 4.1 days (including Jamaat cases) and if the incident had not taken place and additional cases had not come then the doubling rate would have been 7.4 days."
In its daily briefing, the government also reported Goa is now free of coronavirus.
Addressing a daily media briefing to give updates on the COVID-19 situation in the country, Joint Secretary in the Health Ministry Lav Agarwal said most of the Markaz event-related cases have been found in states with high burden of the disease, such as Tamil Nadu (84 per cent), Telengana (79 per cent), Delhi (63 per cent), Uttar Pradesh (59 per cent) and Andhra Pradesh (61 per cent).
Joint Secretary in the Health Ministry Lav Agarwal claimed that India has been doing better than many other countries on the outcome ratio, which is the number of recoveries from coronavirus infection versus the number of deaths.
These dedicated COVID-19 facilities will have a capacity of 1,06,719 isolation beds and 12,024 ICU beds reserved for such patients in the country.
The top court said the private hospitals including laboratories have an important role to play in containing the scale of the pandemic by extending philanthropic services in the hour of national crisis.
The death toll due to the coronavirus infection rose to 7,466 and the cases mounted to 2,66,598 in the country.
"We have received complaint from a state yesterday and so far discussed with three states. Too much variations have been reported in results of rapid test kits and RT-PCR kits. We advise states not to use them for the next two days," ICMR's Dr Raman R Gangakhedkar said.
The govt said that states have been asked to classify districts which have reported a higher number of cases as hotspots, the districts where cases have been reported as non-hotspots, and green zones where no cases have been reported.
Concern is growing among healthcare experts who believe that if people do not follow the lockdown or social distancing seriously, the situation can quickly go out of control.
'In countries like Japan, one out of 11.7 tests turns out to be positive, which is among the highest in the world. Italy tests 6.7 persons for one positive test while the USA tests 5.3 persons and the United Kingdom 3.4'
The highest number of confirmed cases are from Maharashtra (748), followed by Tamil Nadu at 571 and Delhi with 523 cases. Cases in Telangana have gone up to 321, in Kerala to 314, in Uttar Pradesh to 305, while the number of cases has gone up to 274 in Rajasthan.
The government said there was no immediate plan to extend the 21-day lockdown period, which entered its sixth day on Monday, while the Indian Army dismissed as "fake" social media posts about a possible emergency declaration next month.
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