STIMULATED EPIDEMIC GAME! find out which individual be infected (the first individual infected)?

First Handshake:
1 shaked with 10
2 shaked with 8
3 with 8
4 7
5 14
6 13
7 9
8 11
9 12
10 8
11 13
12 14
13 7
14 6

(after the first grasp numbers, 5 6 12 and 14 wer infected)

Second Handshake:
1 shaked with 4
2 1
3 14
4 5
5 7
6 2
7 1
8 6
9 10
10 14
11 5
12 11
13 14
14 8

after the second handshake numbers 1, 3 4 5 6 7 8 10 11 12 13 and 14 wer infected.

WHICH WAS THE FIRST INDIVIDUAL INFECTED?
AND WHYYYY?
Answers:
This game is initially flawed. In the "first handshake" group, the culture appear more than once. On a first handshake, 14 should not be shaking hands with both 5, 6 and 12. It's not a possibility. 8 apparently shook hand 4 times.

Well, you don't even need the second part. The answer is 14. In the supposed "first shake," he shook hands next to all 4 of them. You're assuming that this first shake is at the same time, so there isn't any of that "get it from someone, who gave it to someone" in the "first shake."
In the first handshake set, 14 be first because every number that shook hands with 14 got infected.

In the second mitt shake set, 4 was first infected because every # 4 shook hands with, that number infected those #'s it shook hand with after getting infected by 4.

Edit: You're right, not sure whether 5 gave it to 14 or 14 gave it to 5. And for the 2nd grasp, I figured it was 4 since 4 is the first one to shake hands next to 1 and neither 5 nor 14 shook hands with 1 in the 2nd greeting.

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