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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."

Bengaluru, Jun 6: Karnataka registered 378 Covid-19 cases in the past 24 hours, breaching the 5,000-mark to settle at 5,213, said an official, here on Saturday. "New cases reported from Friday 5 p.m. to Saturday 6 p.m. is 378," said a health official.

Of the new cases, 333 are local returnees, comprising 88 per cent of the new infections. Returnees from Maharashtra accounted for 99 per cent new cases at 329.

Majority infections in Karnataka nowadays are returnees, mostly from the state''s northern neighbour. Only 27 new infections were contacts of earlier cases.

On Saturday, cases spiked in Udupi, Kalaburagi, Yadgir, Bengaluru Urban, Belagavi, Vijayapura, Davangere and Dakshina Kannada.

Udupi witnessed the highest number of cases (121), followed by Yadgir (103), Kalaburagi (69), Dakshina Kannada (24), Bengaluru Urban (18), Vijayapura and Davangere (6 each), Belagavi (5), Gadag (4), Mandya, Hassan, Dharwad and Haveri (3 each), Raichur, Chikkaballapura and Uttara Kannada (2 each) and Bidar, Tumkur, Kolar and Koppal (1 each).

Among the new cases, three patients from Bengaluru Urban are suffering from Influenza Like Illness (ILI) and another from Severe Acute Respiratory Infection (SARI).

There were seven cases with international travel history to United Arab Emirates (UAE) and one to Turkey.

Meanwhile, 280 people were discharged in the past 24 hours and two persons succumbed to the virus, one from Bidar and another from Vijayapura. Of all the cases, 3,184 are active, 1,968 discharged, 59 dead and 11 in the ICU.

In the past 24 hours, Karnataka tested 11,862 people, of which 11,431 reports returned negative. In total, 3.72 lakh samples have been tested so far, of which 3.61 lakh have returned negative.

Currently, Udupi is leading the state''s Covid-19 burden with 785 active cases, followed by Kalaburagi (448), Yadgir (407), Raichur (320) and Mandya (163) among others.

Bengaluru Urban has accounted for 13 deaths, followed by Kalaburagi (7), Bidar, Vijayapura, Davangere and Dakshina Kannada (6 each) and Chikkaballapura (3 each), among others.

Mar 4: Twenty-one Italian tourists and three Indian tour operators have been sent to an ITBP quarantine facility in Delhi on Tuesday for suspected coronavirus exposure, official sources said.

Health Ministry sources said these foreigners, 13 women and eight men, were in the same group of which an Italian and his wife have tested positive in Rajasthan capital Jaipur.

“His (Italian in Jaipur) condition is stable,” a source said.

Three Indians, who were accompanying this Italian group as tour operators, have also been sent to the ITBP facility in Chhawla area of south-west Delhi, they said.

All these people, staying at a five-star hotel in south Delhi, have been put in “preventive isolation” at the ITBP camp and their samples will be taken on Wednesday, sources said.

The centre already has 112 people, 76 Indians and 36 foreigners, since February 27 after they were evacuated by an IAF plane from Wuhan in China, the epicentre of the coronavirus.

The first samples of these 112 people had tested negative when reports came in last week.