Guardian® vaccine is a multiple antigen product which includes a cell-free extract of K99 pilus type of Escherichia coli, a
unique combination of two inactivated coronaviruses, two G-types of inactivated rotaviruses and a bacterin-toxoid from Clostridium
perfringens Types C and D. It is recommended for use in healthy pregnant heifers and cows as an aid in the prevention of neonatal
calf diarrhea caused by enterotoxigenic E. coli pilus type K99, bovine Group A Serotype G6 rotaviruses, enterotoxemia caused by C.
perfringens Types C and D, and as an aid in the control of neonatal calf diarrhea caused by bovine coronaviruses.