##  [1] "date"      "cvd"       "cumcvd"    "vac"       "percvac"   "cuminf"   
##  [7] "infdai"    "sminfdai"  "perinf"    "perimm"    "smperimm"  "smimm"    
## [13] "smimmdai"  "excess"    "cumexcess" "cuminfx"   "infdaix"   "sminfdaix"
## [19] "perinfx"   "perimmx"   "smperimmx" "smimmx"    "smimmdaix" "hospdai"  
## [25] "hosp"      "hospdaix"  "hospx"     "S"         "I"         "R"        
## [31] "r"         "rlimit"    "Sx"        "Ix"        "Rx"        "rx"       
## [37] "rlimitx"