An infectious disease expert says the new COVID-19 subvariant is causing a spike in cases. But he turns down calls to make face masks mandatory again.<br /><br />Page Javier tells us more.<br /> <br />Visit our website for more #NewsYouCanTrust: https://www.cnnphilippines.com/<br /><br />Follow our social media pages:<br /><br />• Facebook: https://www.facebook.com/CNNPhilippines<br />• Instagram: https://www.instagram.com/cnnphilippines/<br />• Twitter: https://twitter.com/cnnphilippines<br />