Sunday, 17 August 2008

microbiology - Which strains of C. diphteria are causing Diphteria toxin?

Real simple: Beta! Often called "phage beta" b-prophage is a more modern way to write it. I knew that one off the top of my head, but I like to refer the general public interested in bacteriology to Tadar's online text.



It's nicely done, and I wish that it had been around when I was studying bacteriology.



Specific to your question:




Hence, Corynebacterium diphtheriae can only produce the toxin
responsible for the disease if it carries a temperate virus called
phage beta. Only lysogenized streptococci produce the erythrogenic
toxin (pyrogenic exotoxin) which causes the skin rash of scarlet
fever; and some botulinum toxins are synthesized only by lysogenized
strains of C. botulinum.


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