Table 4 Animal body weight statistical data (MEAN ± SD, unit: g).

From: Immunogenicity and safety in animals of a lyophilized live attenuated hepatitis A vaccine following stabilizer optimization

Group measurement point

Negative control group

Positive control group

Test Group 1

Test Group 2

Test Group 3

Test Group 4

Pre-administration

299 ± 18

299 ± 15

300 ± 14

299 ± 14

299 ± 13

300 ± 13

Before Last Sensitization

316 ± 9

315 ± 8

309 ± 4

308 ± 4

309 ± 6

308 ± 4

Before First Challenge

359 ± 14

362 ± 10

360 ± 7

357 ± 7

358 ± 8

353 ± 6

Before Second Challenge

402 ± 21

404 ± 15

407 ± 14

401 ± 10

414 ± 8

398 ± 8

  1. Note: Compared with the negative control group, no superscript indicates no statistically significant difference.