NEW DELHI: Seven more people who returned from china have been kept under observation at health facilities in Kerala following screening for a possible exposure to novel coronovirus (nCoV) even though to positive case has been detected in the country so far, Union Health Minister Harsh Vardhan said. Samples of these seven passengers have been sent to the ICMR-NIV Pune lab. Samples of four other passengers tested earlier have been confirmed to be negative for nCoV by the lab. Under directiona from Vardhan, a 24x7 NCDC Call Centre (+91-11-23978046) had been made operational, said the Union Health Ministry on Saturday. "The Call Centre will monitor the list of contracts furnished by Ministry of External Affairs; provide details of district and State surviellance officers to those who seek them; and in case of any clinical query, direct the concerned to the relevant Integrated Disease Surveillance Programme (IDSP) officer," said the health ministry. The Union Health Minister has directed for multidirectionary central teams to be sent to the seven states where thermal screening is being done at the seven designated airports- New Delhi, Kolkata, Mumbai, Chennai, Bengaluru, Hyderabad and kochi. Congress condemns holding exams on Republic day