Receptive

Anal Sex

Insertive

Anal sex

Receptive

Vaginal Sex

HIV (chronic-untreated)

No condom

138

11

8

one with STD***

356*

28*

21

both with STD

944

75

55

Condom

39

4

2

one with STD

100

11

4

both with STD

264

28

11

Condom and PrEP****

3

<0.5

<0.5

one with STD

8

1

<0.5

both with STD

21

2

1

Acute HIV (high viral load-untreated)

No condom

1001

80

58

one with STD

2581*

206*

150*

both with STD

6840

545

397

Condom

280

30

12

one with STD

723*

76*

30*

both with STD

1915

202

79

Condom and PrEP

22

2

1

one with STD

58*

6

3

both with STD

153

16

8