Estimates of the Risk of Endemic Transmission of Hepatitis B Virus and Human Immunodeficiency Virus to Patients by the Percutaneous Route During Invasive Surgical and Dental Procedures (Draft)

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nu'mber of dential workero anid a
United States is also unknown,..'
off report..ci AIDS cases r the.se:1
a factor o~f 8 i 1e11l24$ d ent
The risk off transmnissio 0of HIV
during an invasive procedure has;
Sn terskto a NcW of H1iIV t,
P er 7--out 3nen*s exposure to MTV-inf
than the risk of HBV transmissio!
to bloid. that is positive,for HA
30,1), %-0it i likely thati the ris1ik
HCW t a p atient during, an invas
C-, A"L C*e rabv lwe r t h an the risk
HBeAg posit -ve HCW to a Patient'
TnVe5tjqfaticn of one outbreaak in
ATDs, stror-cly suggested that li!
evahi-Un.,.tl to date Tis9a*
a d tpv;tc-d with c ut~ori, s
the &zmt tested un erw*ent ii
r4 sli s any patier~ts are, no
Thr ee R T et iv e at 4d'e e
W a's zf ratto all Pat.en swh
rrN d hby a general sura
S 1.,l 17c 4 of A~
ct r 7 cw)4 f lEwere te t,'
dr~u~rwaP seropos i ti
r, 16 as at *trohe time of
besd~~with e a
S. reT V As extrapulM na*t
H TV - ndiu.c,d irnunosupp es i
FTV w1 ~c, - on at that tIM
tramsiun rate was 961
I fth e c %con f id dee int
ss -4.v Ietee7t HIV tr~n s5
ti4d5 e C4tdi cn s in ad i in -to
First-, sinc-e the date of the *vi
it. Isurnknown whatpo tin
oner-$.at ei by the Surg,! AI
vr Pcrt on c f the patefls!vith HIV infection in -the
t i.e, est-imated. as the, number
Lto~lgoup smultip1i ed.' y
Ike sland 3 3 6 surgeons.
nf j ~Cted HC oa Patient'
4*, 4axtemalvely studied.
~$infollowing,
~Q4is considerably lower,..ving, percutaneou-s exposur
versus approxima tely
'sission of HIV from a
~dre i s also
a ision of HBV f rom a
same procedure.*
4ce of a dentist:,with
1itt ed to 3 (O4 Q f
)hwho have been
4nfli~dered preliloiA.&,"
-not known how many 0f.,74cedures and sinceta
lyavailable.,
Worted in, which HIVI
o~surgeons withAIS
HVantibody tes ting'
g.ical procedure
ersbef ore the,
*tents who-were
aknown intrave'nOUS
*,,patientIs HIEV
w however, he had.
loss by the tiMeQ
0i f ten associtdd.t
"Fts that he may hdi
his.,patient, the observed'
1 0 per operato;uper
0,15*:). The-ability 'of thi.1is] ted1y: *

Tn-1989, CCt
United Statesl ','*,.,,,-,'
inf ected, per,-Lh'
occupational t-4