【c】評論
"Point prevalence studies have found that most piglets are infected at 1–6 months of age with few infected under 1 month of age or as adults; several studies have found no Cryptosporidium in these two age groups (Santín and Trout 2008)."--Diseases of Swine 10th Edition
【不教英文的英文老師】評論
跟弓蟲一樣需要給蟲一點時間，看到初生關鍵字就要想一下。