Question

We all of lots of bacteria in and on us.

Do we all primarily have the same bacteria?

Do only bacteria make up the normal flora?

Please be specific, thank you!

Answer 1

The answer of the first question: NO

Explanation:[ Primarily when a baby is born, they usually contain a normal flora in their gut. Recent advancement in the research has proven that the baby has a normal flora even before their birth which consists of bacteria as well as fungi. Although this statement is highly debatable and research is still going on to confirm that if the womb is at all sterile or it has bacteria and fungi even before birth.]
But the well-known concept is that the babies get the majority of their normal flora during their birth. Both the physiological conditions as well as the normal flora differ from one mother to another. Also, the environment plays a major role in contributing to the normal flora. So the normal flora also differs in each newborn baby.
One more factor is the mode of delivery. The normal flora of babies differs according to the mode of delivery. In the case of babies born by normal vaginal delivery, they have one kind of normal flora which they get from their mother's vaginal resident flora and environment.
And in the case of babies born by the cesarean method, the babies have different normal flora which they get from the mother's body and the environment.
So, from the above discussion, it is clear that we do not have the same bacteria(or the normal flora) primarily.

The answer to the 2nd question: NO

Explanation: The normal flora is microorganisms that are present in our body permanently without causing disease(mostly).
The normal flora mostly consists of bacteria, fungi, and sometimes protists, archaea, and viruses. It doesn't contain bacteria only.
Examples of bacteria present in normal flora are Staphylococcus sp., Corynebacterium sp., etc.

Example of fungi present in normal flora Candida sp. etc.

Example of protist: Blastocystis

Example of virus: bacteriophages

Example of archaea: Methanosphaera sp.