Antigen Presentation
Getting the Jab
Immunity
Myth or Fact
Lockdown Blues
100
____ is a marker that tells your immune system whether something in your body is harmful or not.
Antigen
100
What is the body's first line of defense?
skin, saliva, mucus, tears, acid in stomach
100
The reaction that begins when an antigen is recognized by the body.
Immune response
100
Myth or Fact: Antibodies can fight any germ they want.
Myth (They’re specific.)
100
COVID-19 is caused by this kind of microorganism.
What is a virus?
200
These proteins “fit” an antigen like a key fits a lock.
Antibodies
200
____ train your immune system to create antibodies, they contain only killed or weakened forms of germs like viruses or bacteria.
Vaccine
200
These cells are created during the immune response and help protect you next time.
Memory cells
200
Myth or Fact: Vaccines give you real memory cells.
Fact
200
The body recognizes parts of a virus as these.
Antigens
300
Before antibodies increase enough to neutralize an antigen, this must pass.
Several Days, aka: lag or latent phase
lasts between 5 to 7 days, though it can take up to 2 weeks for antibodies to become detectable.
300
This is the main difference between a serum and a vaccine. (Hint: think of snake venom serum)
Serum gives antibodies; a vaccine stimulates your body to make them. A serum's protection is short term.
300
How do B cells work?
B cells produce antibodies. These antibodies lock onto the surface of an invading cell and mark it for destruction by other immune cells.
300
Myth or Fact: You always get sick when an antigen enters the body.
Myth
300
People got sick when COVID first appeared because they had none of these.
What are memory cells?
400
The ability of the immune system to recognize an antigen depends on these special cells.
Antibody-producing cells / specific white blood cells
400
This is why a vaccine cannot help someone already infected.
It takes days to make antibodies
400
How do T cells work?
T cells are direct fighters of foreign invaders. T-cells protect people from getting infected by destroying cancerous and infected cells
400
Myth or Fact: A serum gives you immediate protection.
Fact
400
Someone vaccinated against COVID will respond this way if exposed later.
Faster antibody production / no symptoms
500
This is why you get sick the first time an antigen infects you.
The immune system needs time to make antibodies
500
Why do we receive injections instead of taking it by mouth.
Preserving antigen structure is an important reason why so many vaccines are given by injection rather than by the oral route, which exposes the vaccine to digestion in the gut.
500
This is why you don’t get sick the second time you meet the same antigen. (Hint: tell me how it works)
Memory cells make antibodies faster
500
Myth or Fact: Memory cells forget after one year.
Myth
Studies have found that B cells specific to the smallpox vaccine can persist in the body for over 60–90 years after vaccination!
500
YOU MUST CHOSE A DOLLAR VALUE YOU WANT TO BET ON THIS QUESTION. The amount bet is added or subtracted based on your response.
No, the virus has likely changed (mutation). Vaccination against one form of virus will not protect if the antigen mutates so that it is no longer recognized by the immune system.