The Pakistan Meteorological Department (PMD) on Saturday told the National Command and Operation Centre (NCOC) that its study has found a decline in Covid-19 transmission rate related to rise in temperature and humidity. The PMD official briefed the NCOC meeting headed by Minister for Planning, Development and Special Initiatives Asad Umar through video link about the findings of its research conducted in collaboration with the Ministry of Health Services, Regulations and Coordination. He added that a deep study of the pandemic outbreak pattern showed that the coronavirus spread mostly occurred in the mid latitude which had cold and dry weather. No single case was reported in the tropical belt during the first three weeks of the contagion rise. “Increase in temperature from 3-5 degrees mainly beyond 30 degrees and mean humidity over 50 degrees would slow down the virus transmission,” he noted.The forum was also apprised about the testing regime adopted at the airports to contain the epidemic spread. Special Assistant to the Prime Minister on National Security Dr Moeed Yusuf said that there was 90 percent local transmission of Covid-19 at the moment and only 10 percent were foreign induced. He said there was no testing done of the air travelers at the airports in many of the countries rather they were putting the masses under self-quarantine.The forum made detailed discussion on issue with the provinces where the provincial chief secretaries agreed to the idea of abolishing testing on arrival of passengers and agreed for a strict and proper screening of the passengers arriving at the airports. The forum including provincial chief secretaries condoled the demise of the passengers of PIA aircraft crashed in Karachi.