G.R. No. 106429 - Salita vs. Magtolis

Rizalina B. Bihag, employed as a classroom teacher in the Bureau of Public Schools in Lapu-Lapu City, Cebu, joined government service on August 7, 1964.
Her service record shows continuous employment for more than 10 years until December 19, 1974.
Rizalina B. Bihag died on December 20, 1974 from carcinoma of the nasopharynx.

Following her death, on January 26, 1975, her son Charlie Bihag filed a notice of claim for compensation with the Bureau of Public Schools, Division of Lapu-Lapu City, on behalf of himself, his father Patricio Bihag, and his brother Richard Bihag as heirs.
A committee, chaired by Mr. Agapito S. Canete and with Napoleon B. Tumulak as a member, evaluated the claim on January 30, 1975, recommending that the claim be given due course and favorable action.
Pertinent documents and recommendations were forwarded by the City Superintendent of Schools to various government agencies, including the Department of Labor and the Office of the Solicitor General.

On February 20, 1975, the Office of the Solicitor General submitted a letter of controversion arguing that there was “no causal relationship between the cause of death of the deceased and the nature of her employment.”
Subsequent correspondence from the City Superintendent of Schools on May 22, 1975, expressed continued favorable consideration of the claim despite the controversion.
On June 18, 1975, the Office of the Solicitor General reiterated its opposition by contesting the claimant’s right to compensation.

The Acting Referee of Regional Office No. VII, Cebu City, rendered a decision on August 21, 1975, granting the claim for compensation based on:

The finding that the illness contracted during the period of employment was presumptively related to her service.
Evidence that her work as a classroom teacher—primarily involving continuous talking—could have aggravated her condition.
The awarding of disability compensation equivalent to 60% of her weekly wage for 208 weeks, with the compensation transferred to her legal heirs upon her death.

On October 17, 1975, the respondent (employer) filed a motion for reconsideration, which was subsequently denied by the Acting Referee on November 25, 1975.
On December 26, 1975, the Workmen’s Compensation Commission reversed the earlier favorable decision, denying the claim on the ground that the cause of death (carcinoma nasopharynx) had no causal relationship with the nature of her employment, relying heavily on a medical report by Angelina V. Cruz Geoneratne.

The medical report stated that cancer, being a disease of unknown etiology and not typically regarded as an occupational disease, had no causal relationship with her employment.
The case of Maria Cristina Fertilizer Corporation vs. Workmen’s Compensation Commission was cited to support that while cancer is generally not recognized as an occupational disease, it does not preclude the compensability of an illness if service connection or aggravation is demonstrated.
The record further showed that the symptoms of her illness emerged during her employment and that her professional duties could have significantly contributed to the aggravation of her condition.
Additional relevant cases included Lilia D. Simon vs. Republic of the Philippines and Laron vs. Workmen’s Compensation Commission, where similar arguments regarding presumption and aggravation during employment were advanced.

Whether the illness (carcinoma of the nasopharynx) contracted by the deceased is causally related to her employment as a classroom teacher.
Whether the aggravation of her condition due to the nature of her work (continuous talking and explanation to pupils) establishes a service connection sufficient for compensation.

Whether, once it is established that an illness supervened during employment, a rebuttable presumption arises that the illness is either caused or aggravated by said employment.
Whether the employer successfully discharged its burden to prove that the condition was not service-connected despite the generic opinion of non-causality of cancer as an occupational disease.

Whether the failure of the Bureau of Public Schools to timely controvert the claim, thereby waiving defenses other than jurisdictional, affects the adjudication of the claim.