Re: Q Fever

From: Michael Rice (mcrice@gil.com.au)
Thu Nov 28 06:34:09 1996


>I've checked the books I have lying around the house and have a little
>better grasp of its mode of transmission (ticks)

Q fever can be easily caught from aerosols in meatworks. Transmission to humans is not by ticks as far as I know. Handling infected materials is another route of infection, but I've known of visitors to meatworks contracting the disease just by being there.

>and pathogenic organism (rickettsii)

Coxiella burnettii. Are you thinking of Q fever or a disease such as tick typhus?

>, but my sources did not address the affects of this
>infection on pregnancy.

I've not ever become aware of any real risk to pregnant women oe those of childbearing age. I can't produce evidence to support this, however.

>The potential for becoming a carrier was also
>mentioned by my consulting physician last night, but was not addressed
>in the scanty literature I could find on my shelves.

I dunno about this one. Recovery is usual.

>Do any of you have insights about this disease which would help me
>understand it a little better if I were to encounter it again?

A nasty little illness, with fever, malaise and respiratory symptoms the main problem. Treatment is as for atypical LRTI with tetracyclines or erythromycin. Recovery is usual. Much less commonly occur hepatitis and endocarditis which may grumble on for ages. A vaccine exists.I tend to think most unvaccinated meatworkers in the Australian industry for >5yr have probably had it. I used to see a couple of cases a year until the meatworks closed, although there are still occasional cases from the rendering plant eg in unvaccinated contractors rather than their own vaccinated staff.

>Blood, secretion, and respiratory precautions were employed and the LDR
>room was "terminally cleaned" after the delivery. Is this truly
>indicated in someone who has had the disease and recovered?

I doubt it. However with active disease it might be a good idea. Never really thought about it.

>How is
>carrier status determined?

Dunno. Never really heard of it. >
>Thanks for letting me pick your collective brains...

Hope it's been of use!

Michael

------------------------------------------------------------------------------ Dr Michael Rice M.B.,B.S.,Dip R.A.C.O.G.,F.R.A.C.G.P. ------------------------------------------------------------------------------ mcrice@gil.com.au General Practitioner

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