The phrase "are required to isolate" is correct and usable in written English.
It can be used in contexts where there is a necessity or obligation for individuals or groups to separate themselves from others, often for health or safety reasons.
Example: "Due to the outbreak, all individuals who test positive for the virus are required to isolate for a minimum of 14 days."
Alternatives: "must isolate" or "are obligated to isolate".
Instead, the Scottish Executive has announced a two-mile (three-kilometre) protection zone in which bird keepers are required to isolate their flocks from the wild population.
The method can transform one simple glass slide into a micro-scale flow cell (through double-sided tape), and no hydrodynamic or mechanical forces are required to isolate and extend DNA molecules (Figure 1a).
For Case 2 in Table 1, three switch operations are required to isolate the fault.
Further pharmacological investigation and bioactivity guided studies are required to isolate the active principle (s) responsible for these activities.
Further studies are required to isolate the active molecules.
Consequently, a very large number of tests are required to isolate the effects of screw design.
For every breakage mechanism a different tester is required, to isolate the physics acting on the particles.
Also, we were required to isolate all circuitry connected to the electrodes from the MCU which received power from an outlet.
However, the residuals in the case of experimental data shown that a decision logic is required to isolate the leak, because of the leak uncertain position.
The line of sight (LOS) stabilization control based on gyro stabilized platform is required to isolate the LOS from the disturbance and vibration of carrier and ensure pointing and tracking for target in electro-optical tracking system.
It is not clear whether this will be possible or whether taxpayers will be required to isolate different divisions of their operations and determine the tax position of these divisions separately i.e. whether taxable income derived from domestic, import based and export based operations will need to be separately accounted for and returned or whether a form of consolidation will be allowed.
