Human Infection and Response- Resistance Flashcards
What are memory cells?
Memory cells are formed when a pathogen is destroyed. They remember the pathogen so that there can be a quicker response if it comes back.
What is a vaccines?
A substance that is used to stimulate an immune response of producing antigens faster.
How do vaccines work?
They introduce a dead or inactive pathogen to your body to stimulate an attack safely. Memory cells are left behind which remember and recognise the pathogen if it comes back so that the body can make more antibodies faster.
What is herd immunity?
It is when a set a % of the population is vaccinated to avoid mass spread of a disease.
What is a drug?
A substance that has a physiological effect on your body when introduced to your body.
What do painkillers do?
They reduce pain, fever and treat symptoms.
What do antibiotics do?
They fight infections by kiling bacteria or making it hard for them to multiply.
What is a mutation?
A change in DNA/ genetic sequence. Most of the time, there is no effect on the body.
What is antibiotic resistance?
When pathogens mutate to be able to kill the drugs.
What are the 3 types of mutation?
Substitution, insertions and deletions.
How are humans driving the evolution of resistant bacteria?
-Overuse of antibiotics
-Over prescription of antibiotics
-Not finishing antibiotic courses
