<span style="color: #222222;">In our series 'Expert Speak' on All India Radio, we bring you the views of the leading medical experts on COVID-19.<br />”<br />”Talking to AIR News, Dr. Uma Kumar, Head of &nbsp;Rheumatology Department, AIIMS said that lockdown is very effective in containing the spread of Corona virus in the country and it is a timely decision taken by the government.&nbsp;</span><br />