Answer: all of the above.
Explanation:
Condom is a barrier method of contraception that prevents the sperm coming into contact with the oocyte (egg).
There are male and female condoms.
They are effective in preventing sexually transmitted diseases like HIV.
If used correctly, condom has an efficiency of 98%
Answer:
the body would usually fight both the vaccine (while the vaccine is also fighting the virus)and bacteria in body
Answer:
be trained on how to use the machine
Explanation:
training is better than experimenting on patients