[Biopython] Bio.Blast; entrez_query= multiple organisms

[Jesse Colangelo-Lillis]

Can someone tell me the format for specifying multiple organisms
within the blast parameters?

I have this:

result_handle = NCBIWWW.qblast("blastp", "nr", gene_seq, expect=100,
hitlist_size=1, entrez_query="unclassified Caudovirales[orgn]")

but I actually want to blast against both 'Caudovirales' and
'unclassified Caudovirales'.
Thanks for any help.

-- 
Jesse Colangelo-Lillis
--
Australian National University
Research School Earth Sciences
Bldg 61. Mills Road
Canberra, ACT 0200
Australia
cell: 0415 380 105
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