<span style="color: #222222;">Chinesecapital city Beijing has tightened the entry of people from Qingdao after it reported five close contacts linked to confirmed COVID-19 cases in east China city.<br />''<br />''Peoplein Qingdao have been advised not to enter Beijing in the near future unless necessary. Those who need to come to Beijing must present a negative nucleic acid test certificate within seven days before arriving in Beijing, local authorities said.<br />''<br />''People in Beijing are also advised not to go to Qingdao soon.<br />''<br />''Those who are currently in Beijing and have travelled to Qingdao in the past 14 days should report their traveling information to residential communities, conduct nucleic acid tests, and monitor their health conditions.<br />''<br />''Qingdao emergedas new cluster of local infections as it had reported 12 new confirmed cases ofCOVID-19 since the virus re-emerged in the city over the weekend, said the local municipal health commission.<br />''<br />''Over 9 million people had been sampled for nucleic acid testing by Thursday in Qingdao after it began a city-wide testing campaign on Monday.<br />''<br />''As per state media report, top official of Qingdao HealthCommission and head of the Qingdao Chest Hospital have been suspended after loopholes in epidemic prevention were found.</span><br />