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Table 1 Extinction rate and mean time to extinction for each of the vaccination scenarios

From: Modelling effectiveness of herd level vaccination against Q fever in dairy cattle

Criteria Scenario
  Control 1 1 1 2A 2B 3
   p v = 0.05 p p v = 0.21 p p v = 0.9 p    
Extinction rate 0.00 1 0.97 0.84 0.08 0.43 0.95
Median time to extinction - week 272 week 312 week 390 week 138 week 276 week 348
  1. Control: no control programme; scenario 1: vaccination of heifers and cows for a 10-year period; scenario 2: vaccination of heifers and cows for a 3-year period with (scenario 2A) or without (scenario 2B) loss of immunity one year after the last vaccination; scenario 3: vaccination of heifers for a 10-year period