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Table 1 Effects of age (Eye lens weight - ELW) and viral infection (viral RNA - vRNA and antibody - AB) on body mass, head-body length, sexual maturity and fertility in M. natalensis infected by Lassa (LASV), Morogoro (MORV) and Gairo (GAIV) viruses

From: No measurable adverse effects of Lassa, Morogoro and Gairo arenaviruses on their rodent reservoir host in natural conditions

    ELW vRNA Interaction vRNA × ELW AB Interaction vRNA or AB Interaction
AB × ELW vRNA or AB × ELW
Virus Predicted n \( {\upchi}_1^2 \) P \( {\upchi}_1^2 \) P \( {\upchi}_1^2 \) P \( {\upchi}_1^2 \) P \( {\upchi}_1^2 \) P \( {\upchi}_1^2 \) P \( {\upchi}_1^2 \) P
LASV Body mass 1,297 1670.30 < 0.01 0.53 0.46 0.11 0.74 1.78 0.18 0.49 0.49 2.08 0.14 0.13 0.71
Head-body length 1,296 1751.80 < 0.01 0.16 0.68 0.09 0.75 0.05 0.81 0.15 0.70 0.29 0.65 <0.01 0.97
Sexual maturity 1,297 345.21 < 0.01 1.72 0.54 0.32 0.57 np np 5.42 0.02 0.01 0.91 2.78 0.10
Fertility 151 1.84 0.17 2.14 0.14 0.21 0.65 2.14 0.14 0.03 0.85 0.10 0.75 0.08 0.78
MORV Body mass 747 331.22 < 0.01 0.01 0.94 0.85 0.36 0.02 0.90 0.85 0.35 < 0.01 0.95 1.26 0.26
Head-body length 514 127.46 < 0.01 0.04 0.83 1.50 0.22 0.01 0.94 0.03 0.87 < 0.01 0.97 0.13 0.72
Sexual maturity 749 37.99 < 0.01 0.16 0.69 0.27 0.60 0.08 0.77 0.01 0.93 < 0.01 0.96 0.03 0.84
GAIV Body mass 258 176.09 < 0.01 0.03 0.86 0.52 0.46 13.28 < 0.01 0.01 0.93 8.60 < 0.01 < 0.01 0.99
Head-body length 254 175.00 < 0.01 0.14 0.71 0.29 0.59 8.45 < 0.01 0.95 0.33 6.23 0.01 0.23 0.63
Sexual maturity 256 25.90 < 0.01 0.09 0.76 0.12 0.72 8.57 < 0.01 0.49 0.48 6.14 0.01 0.53 0.46
  1. Abbreviations: n number of sampled M. natalensis; np not possible to calculate because of significant interaction; \( {\upchi}_1^2 \), chi-squared value; P, P-value
  2. The last two columns represent analyses of grouped animals that were either vRNA or antibody positive. Bold P-values are statistically significant