ASCP Parasitology Practice Exam

Cryptosporidium oocysts are indeed capable of being transmitted through contaminated municipal water supplies, making the statement true. These oocysts are very small and resistant to chlorine disinfection processes commonly used in water treatment, which increases the risk of outbreaks linked to public water systems. Contamination can occur due to runoff from agricultural areas, fecal contamination from animals, or through human wastewater. Once present in the water supply, Cryptosporidium can lead to outbreaks of cryptosporidiosis, particularly in immunocompromised individuals.

In contrast, the other choices don't accurately reflect the transmission potential of Cryptosporidium. The claim that it can only be transmitted in rural areas is overly restrictive, as waterborne outbreaks have been documented in urban settings as well. Suggesting that transmission occurs solely through food contamination ignores the significant risk posed by water sources. Therefore, stating that Cryptosporidium oocysts can be transmitted through municipal water supplies is a reflection of their widespread health impact and persistence in various environments.