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Figure 2 | Veterinary Research

Figure 2

From: Ultra- and micro-structural changes of respiratory tracts in SARS-CoV-2 infected Syrian hamsters

Figure 2

Virus genome copy numbers in (A) nasal washes and (B) lung tissues determined by RT-qPCR. The upper respiratory tract showed the highest levels of viral RNA at 2 dpi. Meanwhile, the lower respiratory tract showed the highest level of viral RNA at 4 dpi (P < 0.01). C Quantity of infectious viral particles in the tissues determined by plaque assay. The highest viral titer was observed at 4 dpi (P < 0.01). All data are presented as means ± SD (n = 3 per group). Viral RNA and titer are expressed in logarithmic scale using base 10 (Y axis).

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