An injection of dead or weakened pathogens is a v__________.
vaccine
If the real pathogen enters your body, m________ c______ produce antibodies very quickly.
memory cells
An e_______ is when a disease spreads quickly in a short amount of time.
epidemic
Some people choose not to have vaccines because they are worried about the s____ e________.
side effects
Chemicals that kill pathogens are called a_________
antimicrobials
Antibiotics only kill b_______ and not viruses.
bacteria
Some bacteria m________ and become resistant to antibiotics
mutate
Bacteria that are r________ to antibiotics are called superbugs.
resistant