Figure. Ethidium bromide stained agarose gel of ORF 1b standard reverse transcription–polymerase chain reaction (RT-PCR) products from oropharyngeal swabs of two chickens day 1 after injection. Key: 1) Positive control (severe acute respiratory syndrome coronavirus from Vero E6 culture); 2) Negative control (water); 3) and 4) Oropharyngeal swabs from chickens 337 and 341 at 1 days after injection; 5) Cloacal swab from turkey at day 2 after injection; and 6) Negative control from cloacal swab of turkey day 0 after injection.
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