The sentences given below, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a number. Decide on the most logical order and enter the sequence of numbers in the space provided. Only numbers are to be entered in the space provided for the answer, and no letters, characters, or spaces should be entered. For example, a response such as 3412 is valid and responses such as 3412. or 3 41 2 are invalid.

1. “It’s going to be less of freak biological occurrences and more like hurricanes, which are increasing and becoming more devastating”, say health experts.
2. It is hard to predict which pathogen could launch the next global health crisis, but infectious diseases experts say they are closely watching various outbreaks world-wide for signs of pandemic potential.
3. Pandemics are expected to occur more often and become more deadly because of climate change, globalisation, and the billions of livestock we raise to eat, as well as wild animals whose habitats we have diminished.
4. A manufactured pathogen is also a danger. Due to advances in medical technology and AI, a single rogue actor can create a threat.