A person gets exposed to 840,000 germs every thirty minutes as per a 2011 Tork Report by SCA. Further research is needed to corroborate the claim.
The report showed that an active individual comes in contact with three hundred surfaces every thirty minutes by exposing himself to 840,000 germs. Germs enter primarily from people's hands from the surfaces; we can avoid it by taking a few precautions.
These findings are based on research conducted in 2011. Since the findings are not recent times, and only one such research is available, further research is needed to corroborate the claim altogether.