method wherein the Modified Vaccinia virus Ankara is selected from MVA 575 deposited at {HEAD ~ the European Collection} of Animal Cell Cultures under the deposition number V00120707, MVA 572 deposited at ECACC under the deposition number V94012707, and MVA BN deposited at ECACC under number V00083008, or {TAIL ~ a derivative} of any such virus; such a 
method wherein the Modified Vaccinia virus Ankara is selected from MVA 575 deposited at { HEAD ~ the European Collection } of Animal Cell Cultures under the deposition number V00120707 , MVA 572 deposited at ECACC under the deposition number V94012707 , and MVA BN deposited at ECACC under number V00083008 , or { TAIL ~ a derivative } of any such virus ; such a
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH