Microbiology In pontaic fever, which antigen is seen in urine? A Lipopolysaccharide-1 B Lipopolysaccharide-2 C Lipopolysaccharide-4 D Lipopolysaccharide-6 💡 Explanation In pontaic fever, which antigen is seen in urine? ✓ Correct Answer: A. Lipopolysaccharide-1