As a microbiologist working for the WHO you are brought into…
As a microbiologist working for the WHO you are brought into Southern Algeria to help identify a recent outbreak of dysentery thought to be due to a contaminant in the water. You collect your water sample and observe an organism measuring approximately 300 um in diameter and it also contains a nucleus. You notice the organism has no cell wall, is unicellular and is highly motile utilizing what appears to be pseudopodia for its movement. You conclude that the etiological agent is a(n)