Don’t know, although I don’t see why cotton or sheepskin condoms would be significantly less effective than modern ones. If the condom can stop the sperm, it can stop whatever else is in the semen.
No, a sperm cell is very substantially larger than a virus particle. Lambskin condoms have not been shown to be effective at blocking virus transmission.
Failing to find an actual paper that does more than mention in passing that they-re not shown effective—it just gets treated as common knowledge. Wikipedia’s condom article references “Boston Women’s Health Book Collective (2005). Our Bodies, Ourselves: A New Edition for a New Era. New York, NY: Touchstone. p. 333. ISBN 0-7432-5611-5.”
Don’t know, although I don’t see why cotton or sheepskin condoms would be significantly less effective than modern ones. If the condom can stop the sperm, it can stop whatever else is in the semen.
No, a sperm cell is very substantially larger than a virus particle. Lambskin condoms have not been shown to be effective at blocking virus transmission.
Not that I don’t believe you, but would you happen to have a source I could use for further reference?
Failing to find an actual paper that does more than mention in passing that they-re not shown effective—it just gets treated as common knowledge. Wikipedia’s condom article references “Boston Women’s Health Book Collective (2005). Our Bodies, Ourselves: A New Edition for a New Era. New York, NY: Touchstone. p. 333. ISBN 0-7432-5611-5.”
Here’s a nifty visualization of the scales involved: Cell Size and Scale