Figure 1. Macroscopic observation of S. Enteritidis in XLD and RSA media. (A) S. Enteritidis colonies on XLD media. The arrows indicate S. Enteritidis colonies are pink with the black center because H2S was produced, there are also colonies that are full black because more H2S was produced. (B) S. Enteritidis colonies in RSA media. The arrows indicate the circular S. Enteritidis colonies and the color is purple.
