Waning immunity and re-emergence of measles and mumps in the vaccine era. Author(s): Yang L, Grenfell BT, Mina MJ|Journal: Curr Opin Virol|PMID: 32634672| July 2020 Vaccine-preventable diseases (VPD) including measles and mumps have been re-emerging in countries with sustained high vaccine coverage. For mumps, waning…