Question

how to make a flu vaccine
what is the correct order of the steps involved in
producing an influenza vaccine?

1. combine the 3 viruses to make vaccine
2. inactivate or weaken viruses
3. select 3 flu strains
4. collect data on flu strains
5. inject viruses into eggs and incubate
6. open eggs and collect viruses

Explanation:

Step1: Understand the process

To make a flu vaccine, the first step is to collect data on flu strains to identify which ones are prevalent. So step 4: Collect data on flu strains.

Step2: Select strains

After collecting data, select 3 flu strains. So step 3: Select 3 flu strains.

Step3: Inject into eggs

Next, inject the selected viruses into eggs and incubate. So step 5: Inject viruses into eggs and incubate.

Step4: Open eggs and collect

After incubation, open the eggs and collect the viruses. So step 6: Open eggs and collect viruses.

Step5: Inactivate or weaken

Then, inactivate or weaken the collected viruses. So step 2: Inactivate or weaken viruses.

Step6: Combine to make vaccine

Finally, combine the 3 (now inactivated/weakened) viruses to make the vaccine. So step 1: Combine the 3 viruses to make vaccine.

Answer:

The correct order is: 4. Collect data on flu strains, 3. Select 3 flu strains, 5. Inject viruses into eggs and incubate, 6. Open eggs and collect viruses, 2. Inactivate or weaken viruses, 1. Combine the 3 viruses to make vaccine.