Campylobacter most common pathogen found in dairy cattle A study conducted at 185 dairy farms found the Campylobacter bacterium at 91% of those farms. Out of the pathogens that were studied, this type of bacteria is the most common in dairy cattle.
Climate change, ozone depletion and air quality need to be addressed coherently Ozone layer depletion, air pollution and climate change need to be addressed in connection with each other.