WHO Philippines expresses concern within the very low COVID-19 vaccination level among the senior citizens in some LGUs amid rising threat from new variants Ahead of joining WHO in 2018, Dr Asma held leadership positions for the U.S, Centers for Ailment Control and Prevention (CDC) for more than 20 years. https://seniorhealth08529.boyblogguide.com/33380814/senior-health-for-dummies