Lankester subsequently closed the pump due to Snow 's theory and data on the pattern of infection , and infection rates dropped significantly .
He agreed with John Snow at the time ; however , his opinion , like Snow 's , was not publicly supported .
Lankester subsequently closed the pump due to John Snow 's theory and data on the pattern of infection , and infection rates dropped significantly .
He agreed with John Snow at the time ; however , his opinion , like Snow 's , was not publicly supported .