Haematological alterations in Rattus norvegicus (Wistar) experimentally infected with Echinostoma paraensei (Trematoda: Echinostomatidae)

► All animals were infected in the first week. ► The red blood cells, haematocrit and haemoglobin showed lower than control. ► Haematological alterations in Rattus norvegicus infected with Echinostoma paraensei.