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Bengaluru, Apr 1: Karnataka Health Minister B Sriramulu on Wednesday said that 200 people, out of 342 from the state who had attended the religious gathering at Markaz building in Delhi's Nizamuddin area, have been quarantined.

"200 people including four from Bengaluru and five from Belgaum, who participated in Tablighi Jamaat (in Delhi's Nizamuddin), have been quarantined. Total 342 people from Karnataka had attended the event," Sriramulu told reporters here.

The gatherings organised by the Tablighi Jamaat at the Markaz building in Nizamuddin came into the spotlight after multiple coronavirus cases were confirmed amongst those who attended the event held in March.
Twenty-four cases were reported from the national capital alone, apart from Telangana, the union territory of Andaman and Nicobar Islands amongst others.

The minister had earlier said that Bengaluru Urban and Mysuru have been identified among the prime 25 COVID-19 hotspots in the country.
Chikkaballapur, since the last fourteen days, has been emerging as another hotspot, according to Sriramulu.

The total number of coronavirus cases in India has risen to 1,637 after 240 new cases were reported in the country, according to the Ministry of Health and Family Welfare, on Wednesday.

The total number of active cases rose to 1466 in the country, while 132 people have been cured and discharged after receiving treatment, as of 9 am.

Bengaluru, Apr 28: Karnataka has found that the rapid antibody test kits for COVID-19 that the Centre supplied to the state have only 47% sensitivity. The state will be returning the kits to the Indian Council of Medical Research (ICMR).

Karnataka had received 11,400 rapid antibody test kits from the ICMR a few days back, out of which it had sent around 200 of them to NIMHANS for validation.

After the ICMR, on Monday, sent a circular to all states to return the test kits to the suppliers, Dr CN Manjunath, Director, Jayadeva Institute of Cardiovascular Sciences and Research, and nodal officer for lab testing in the state's COVID-19 task force, said, "We have cancelled the orders we placed to Guangzhou Wondfo Biotech and Zhuhai Livzon Diagnostics for one lakh rapid antibody test kits. Since the ICMR supplied us with 11,400 kits out of the 6.5 lakh kits it procured, we will be returning the kits to them."

Manjunath told said that the validation at NIMHANS revealed the kits to have only 47% sensitivity. Sensitivity is the ability of a test to identify the true-positives in a population, i.e., the actual number of people who've been infected with the disease. With the rapid antibody testing kits being shelved, the state's plan to randomly test high risk groups has taken a backseat. 

So far, the state has tested 43,791 samples. 

Karnataka now has 22 testing facilities -- 14 government and seven private labs. Many private labs have not tested any samples so far because of the lack of test kits (the state has made it clear that it will not provide test kits to private labs). So, getting an ICMR approval for testing has become a moot point.p

Agreeing to the setback the state's plans of ramping up testing has taken, Manjunath said, "It is true that RT-PCR test kits are in shortage. Even Pune's Mylabs had a shortage in supplying test kits. But we are relying on institutes like Kidwai, Narayana Health and Biocon's Syngene that have received approval for testing. They're big institutes and we hope that they will test a large number of samples."

On reports that the Centre has RT-PCR test kits that will last for only a week, he said, "We have test kits that will last for eight to 10 days. We have ordered for more. We are hoping to receive them before the current kits run out."