(File photo) MANILA - Presidential Adviser for Entrepreneurship Joey Concepcion believes that there is no need for the Inter-Agency Task Force for the Management of Emerging Infectious Diseases (IATF) to implement a stricter alert level system, particularly in Metro Manila as people are doing voluntary lockdown at their homes. In a Laging Handa briefing Friday, Concepcion said mobility in the National Capital Region (NCR) has slowed down since the spike of coronavirus disease 2019 (Covid-19) cases after the holidays. He added that due to the more transmissible Omicron variant, people have contracted the virus that even put their whole households into "voluntary lockdowns". "That is why they are resistant to go out, and the mobility has gone down. I was telling when they are proposing for Alert Level 4, the mere fact that people are staying at home is a voluntary lockdown, it's like Alert Level 4," he said in mixed English and Filipino. Although the new wave in C