Yew Huoi, How & Associates | Leading Malaysia Law Firm

1. Summary and Facts:

Dr Nurul Aiman bt Mohd Yusof v Universiti Sains Malaysia [2026] 9 MLJ 893 concerned a lecturer who developed a heart condition which she attributed to years of exposure to formaldehyde and xylene fumes from a nearby cadaver room and pathology lab. USM had relocated the labs, upgraded ventilation and provided ongoing treatment. She sued for over RM4 million in damages.

2. Legal Issues:

  • Whether the chemical contamination caused or materially contributed to the plaintiff’s specific heart condition.

  • Whether USM breached its duty of care given the remedial steps it had taken.

3. High Court’s Findings:

  • Contamination was proven, but there was insufficient evidence it caused the plaintiff’s specific condition – medical evidence pointed to a likely congenital abnormality, and she alone among similarly-exposed colleagues developed it.

    • Applying Majlis Perbandaran Ampang Jaya v Steven Phoa Cheng Loon [2006] 2 MLJ 389, negligence without proof the breach was the operative and effective cause of the specific injury cannot sustain a claim.

  • USM had taken substantial remedial measures – relocation, a three-year renovation, upgraded ventilation and ongoing medical treatment – and had not fallen below the required standard of care.

  • The plaintiff also failed to adduce evidence substantiating her claim for special, general or exemplary damages.

4. Practical Implications:

This case shows that a genuine and proven workplace hazard does not automatically translate into a successful negligence claim – the plaintiff must still separately prove the medical causal link on the balance of probabilities.

  • Employers who respond promptly and substantively to safety complaints materially strengthen their defence even where some contamination is established.

  • Claimants relying on occupational exposure should obtain independent expert evidence linking the specific condition to the exposure; shared symptoms among co-workers are not, by themselves, sufficient.

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