Questions with the keyword 'vaccine'

• Why can’t there be vaccinations for big diseases like cancer? by dognut99 to Ed, Hayley, Jason, Nathan, Sophie Comments: (No comments so far )
• How do scientists know how to make a flu vaccine if viruses can be different every year? by theojoseph2 and 1 other. to Ed, Hayley, Jason, Nathan, Sophie Comments: (No comments so far )