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. 2023 Nov 2;19:228. doi: 10.1186/s12917-023-03769-z

Fig. 1.

Fig. 1

Distribution of optical density ratios (OD ratios) among 540 samples obtained from 54 camels from a single closed herd in Matrouh governorate, Egypt, from December 2019 to March 2020 with sampling carried out 10 times at 10-day intervals. The darker area represents borderline values ( 0.8 to < 1.1, as per manufacturer’s instructions)