Thrombocytopenia associated with apoptotic megakaryocytes in a viral haemorrhagic syndrome induced by a moderately virulent strain of African swine fever virus

african swine fever virus apoptose apoptosis biological differences blood disorders cerdo disease course experimental infection in vivo experimentation pathogenese pathogenesis pathogenicity patogenicidad platelets porcin strain differences swine thrombocyte trombocitos trouble sanguin virulence virus de la peste porcina africana virus peste porcine africaine