they are acellular and do not pose a risk for causing the disease
Edible vaccines could be produced more cheaply and in a more distributed fashion, rather than at a central factory. An oral vaccine is also cheaper, easier, and safer to administer than one that requires a needle.
an enzyme with more than one subunit, not feedback inhibition.
Facebook IS NOT safer than Bebo.
No facebook is not safer than skype
The only HPV vaccines today have been in injectable form. There are no nasal or oral vaccines for HPV as of 2015.
Statstically, flight is much safer than transportation by automobile.
Flat irons are easier to use than traditional ones. Traditional ones are also not sold to customers without a beauty license. Flat irons are safer and quicker as well since they iron both top and bottom at the same time.
no a atv is much safer
it depends on what drugs you are referring to. but no, cigarettes are not safer than cannabis.
yes moshi monsters is very safer
yes twitter is more safer than Facebook.
no they have no protection on them so a car would be much safer.