(b) No compensation shall be payable for an occupational disease if the employee, at the time of entering into the employment of the employer by whom the compensation would otherwise be payable, falsely represents herself or himself in writing as not having previously been disabled, laid off or compensated in damages or otherwise, because of such disease.
(c) Where an occupational disease is aggravated by any other disease or infirmity, not itself compensable, or where disability or death from any other cause, not itself compensable, is aggravated, prolonged, accelerated or in anywise contributed to by an occupational disease, the compensation shall be payable only if the occupational disease is the major contributing cause of the injury. Any compensation shall be reduced and limited to such proportion only of the compensation that would be payable if the occupational disease were the sole cause of the disability or death as such occupational disease, as a causative factor, bears to all the causes of such disability or death, such reduction in compensation to be effected by reducing the number of weekly or monthly payments or the amounts of such payments, as under the circumstances of the particular case may be for the best interest of the claimant or claimants. Major contributing cause must be demonstrated by medical evidence based on physical examination findings and diagnostic testing.
(d) No compensation for death from an occupational disease shall be payable to any person whose relationship to the deceased, which under the provisions of this Workers’ Compensation Law would give right to compensation, arose subsequent to the beginning of the first compensable disability, save only to afterborn children of a marriage existing at the beginning of such disability.
(e) No compensation shall be payable for disability or death resulting from tuberculosis arising out of and in the course of employment by the Department of Health at a state tuberculosis hospital, or aggravated by such employment, when the employee had suffered from said disease at any time prior to the commencement of such employment.
(3) Except as otherwise provided in this section, “disablement” means disability as described in s. 440.02(15).
(4) This section shall not apply to cases of occupational disease in which the last injurious exposure to the hazards of such disease occurred before this section shall have taken effect.
(5) Where compensation is payable for an occupational disease, the employer in whose employment the employee was last injuriously exposed to the hazards of such disease, and the insurance carrier, if any, on the risk when such employee was last so exposed under such employer, shall alone be liable therefor, without right to contribution from any prior employer or insurance carrier; and the notice of injury and claim for compensation, as hereinafter required, shall be given and made to such employer; provided, however, that in case of disability from any dust disease the only employer and insurance carrier liable shall be the last employer in whose employment the employee was last injuriously exposed to the hazards of the disease for a period of at least 60 days.
(6) The time for notice of injury or death provided in s. 440.185(1) shall be extended in cases of occupational diseases to a period of 90 days.