TABLE 1 Anitbody Tttres to Safcocpls and Tonoplasma In 25 CFS and 34 Control Pallenis

Sarcocysrrs EClSA tiire

No CFS palenis No control parents

Tonoplasma IHA titre

€1164

1/64

11128

11256

18

4

1

1

2 3

0

29

1

0

group of CFS patients would need to have a high level of invoivcmenr for the parasite to k considered imponant in the parhogenuis of the disorder. This docs not mean that in some C F S patients the pamite may not trigger off the syndrome, and it is of interest that the highest titre of ~rcacystir?nu~(l/512)warinaCFSpPriart. Although 84% dcFs patients had tnvelled to south-& Asia, figura for the gcaual population are not known so the significance of this fuding is unclear.

R PAMPHLETT, scoiwLecrurainRthdogy, U ~ d S Sydnty, NSW. P. WDONOGHUE, Ruearch Fellow, cclltnl VCteriDlry Labontoria, DepYuMnt of Agriculr~rr,Adelaide, SA.

211512

11128

1/256

r1/512

5

1

1

0

4

2

1

5