C) Patient one contracted the sickness from contaminated materials and patient two contracted the sickness from an animal vector.
Explanation:
Salmonella sp. it is a type of bacteria that can be transmitted through the consumption of food contaminated with animal feces, which can happen when eating an undercooked egg or when washing your hands before cooking, for example. For this reason, we can say that the patient infected with salmonella contracted the disease from contaminated materials.
West Nile disease, on the other hand, is transmitted through the bite of infected mosquitoes, mainly of the genus Culex (mosquito). The natural hosts are some species of wild birds, which act as amplifiers of the virus and as a source of infection for mosquitoes. For this reason, we can say that the other patient contracted the disease from an animal vector.
All plasmids we manufactured are free of animal-derived materials and can contain low levels of endotoxin (<100EU/mg, on request). This process is designed to meet our customers’ diverse downstream applications such as transfection, antibody preparation, vaccine, and gene-therapy research, etc.
