Not sure, but can’t measles cause sterility and birth defects?
Mumps causes sterility in some boys. Chickenpox (during pregnancy) causes birth defects.
Measles does neither.
There are different forms of Measles. German Measles?
I seem to recall the chief problem is those who reach adulthood without having had it, and then exposed, causes serious problems. That’s why the “Measles parties” for children used to be a thing. Get it out of the way. Then they have a lifetime conferred immunity.
This incidentally is what caused Ken Mattingly to get bumped from Apollo 13 two days prior to launch. Several astronauts had been exposed, but flight surgeons could find nothing in his health records indicating he had ever had Measles. The incubation period meant he would be orbiting the Moon about the time it would present itself. So they replaced not the whole crew, just him, with Jack Swigert. Ken never did come down with Measles.
Am I recalling correctly that that only comes from getting it as an adult? Used to further explain why it was good to get it as a kid.
“Not sure, but can’t measles cause sterility”
mumps ...