How do I unlock the secret element of the vaccine in Little Alchemy 2?

To unlock the Vaccine in Little Alchemy 2, you need to combine Medicine and Bacteria. HereÔÇÖs a step-by-step guide to help you achieve this:

Step 1: Create Medicine
1. Start with Water and Fire to create Steam.
2. Combine Steam and Air to make Cloud.
3. Mix Cloud and Water to create Rain.
4. Combine Rain and Earth to make Plant.
5. Mix Plant and Time to create Tree.
6. Combine Tree and Tool to make Wood.
7. Mix Wood and Fire to create Ash.
8. Combine Ash and Water to make Puddle.
9. Mix Puddle and Puddle to create Pond.
10. Combine Pond and Pond to make Lake.
11. Mix Lake and Lake to create Sea.
12. Combine Sea and Earth to make Primordial Soup.
13. Mix Primordial Soup and Time to create Life.
14. Combine Life and Clay to make Human.
15. Mix Human and Plant to create Medicine.

Step 2: Create Bacteria
1. Combine Life and Swamp to make Bacteria.
- To create Swamp, mix Mud and Plant.
- To create Mud, combine Water and Earth.

Step 3: Combine Medicine and Bacteria
1. Finally, mix Medicine and Bacteria to create Vaccine.

And thatÔÇÖs it! YouÔÇÖve successfully unlocked the Vaccine in Little Alchemy 2. Let me know if you need further clarification!