He received a Bachelor of Arts degree in 1967 and attended the Journalisthögskolan i Stockholm in 1969.

[1] Alfredius worked at Sveriges Radio's central editorial office from 1970 to 1972, and at Stockholms-Nytt 1972 to 1973, as well as Dagens Eko from 1973 to 1986.

He remained a news presenter at SVT until July 2008, when he was diagnosed with prostate cancer.

[2] In 1981, Alfredius married Lena Löfgren (born 1954), the daughter of editor Åke Löfgren and editor Maud (née Grunell).

[1] Alfredius died aged 66 on 31 March 2009 in Stockholm, due to complications from his disease.