|   
  |       
  |       Eggs/snail  |       Egg masses/snail  |       Eggs/egg mass  |    
|   
  |       Uninfected and unexposed  |       27.6 ± 13.1a  |       5 ± 2.3a  |       7.8 ± 6.5a  |    
|   
  |       Uninfected and exposed  |       23.6 ± 14.5a  |       4 ± 2.3a,c  |       6.2 ± 1.8a  |    
|   1st week of infection  |       Infected and unexposed  |       6.3 ± 6.1a  |       0.5 ± 0.4b  |       19.9 ± 6.5a  |    
|   Infected and exposed  |       2.8 ± 6.3b  |       0.1 ± 0.3b  |       10 ± 14a  |    |
|   2nd week of infection  |       Infected and unexposed  |       6.6 ± 6.1a  |       0.5 ± 0.4b  |       11.1 ± 5.4a  |    
|   Infected and exposed  |       1 ± 2.4b  |       0.06 ± 0.1b  |       3.6 ± 8a  |    |
|   3rd week of infection  |       Infected and unexposed  |       7.5 ± 5.1a  |       0.5 ± 0.4b  |       14 ± 2.2a  |    
|   Infected and exposed  |       0.92 ± 0.89b  |       0.1 ± 0.1b  |       6.5 ± 6.6a  |    |
|   4th week of infection  |       Infected and unexposed  |       6.4 ± 3a  |       0.5 ± 0.3b  |       18.2 ± 13.2a  |    
|   Infected and exposed  |       0.0 ± 0.0*  |       0.0 ± 0.0*  |       0.0 ± 0.0*  |    |
|   5th week of infection  |       Infected and unexposed  |       12 ± 4a  |       0.9 ± 0.2b  |       13.2 ± 6.2a  |    
|   Infected and exposed  |       0.0 ± 0.0*  |       0.0 ± 0.0*  |       0.0 ± 0.0*  |    |
|   6th week of infection  |       Infected and unexposed  |       17.16a  |       0.9 ± 0.2b  |       21.8 ± 10.2a  |    
|   Infected and exposed  |       13 ± 3a  |       1 ± 0.1b  |       13.6 ± 6.2a  |    |
|   7th week of infection  |       Infected and unexposed  |       22.5 ± 23.7a  |       1.7 ± 1.4b,c  |       10.6 ± 3.6a  |    
|   Infected and exposed  |       7.2 ± 4.3a  |       1.2 ± 1.4b  |       10.2 ± 6.8a  |    |
|   8th week of infection  |       Infected and unexposed  |       28.8 ± 2a  |       1.5 ± 0.7b  |       20.8 ± 17.9a  |    
|   Infected and exposed  |       0.0 ± 0.0*  |       0.0 ± 0.0*  |       0.0 ± 0.0*  |