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. Author manuscript; available in PMC: 2022 Apr 1.
Published in final edited form as: Vaccine. 2021 Mar 11;39(14):1943–1950. doi: 10.1016/j.vaccine.2021.02.077

Fig 3. Virus replication in BALF and nasal shedding in nasal swabs after challenge.

Fig 3.

Mean of virus titers in BALF (A) and in nasal swabs (B) from challenged pigs were evaluated on the days indicated. Virus titers were determined by calculating the 50% tissue culture infective dose (TCID50)/ml in MDCK cells. The number of pigs with positive virus isolation out of the total number of tested pigs is presented above of each bar. The asterisks (*) represent a statistically significant difference between groups (*: p<0.05, **: p<0.01 and ***: p<0.001).