delivered the opinion of the Court.
Pursuant to the Uniform Certification of Questions of Law Act, Maryland Code (1974), §§ 12-601 to 12-609 of the Courts and Judicial Proceedings Article, the United States District Court for the District of Maryland has certified for our consideration two questions of law:
1. At what time does a plaintiff’s cause of action for negligence accrue when plaintiff developed a disease in late 1975 or early 1976, allegedly as a result of exposure during the period 1940-55 to a deleterious substance allegedly occasioned by defendant’s negligence?
2. At what time does a plaintiff’s cause of action for strict liability accrue when plaintiff developed a disease in late 1975 or early 1976, allegedly as a result of exposure during the period 1940-55 to a deleterious substance emanating from defendant’s products?
For reasons that follow, we hold that a plaintiff’s cause of action for latent disease, whether framed in terms of negligence or strict liability, accrues when he discovers, or through the exercise of reasonable care and diligence should have discovered, the nature and cause of his disability or impairment. Our decision in this matter is premised upon an analysis of the rationale underlying the applicable statute of *72 limitations, considered in conjunction with authoritative case law construing when a cause of action accrues.
Frances Harig, the designated appellant in this proceeding, instituted a civil action in the United States District Court for the District of Maryland on May 23,1977 against the appellee Johns-Manville Products Corporation (Johns-Manville), alleging that she developed a disease in late 1975 or early 1976 as a result of exposure to the appellee’s asbestos products from 1940 through 1955. During the period 1940-55 (except for a short period as a federal employee in Washington, D.C.), Mrs. Harig was employed as a secretary for Reid-Hayden, Inc. (Reid-Hayden), a Baltimore firm engaged in the purchasing, fabrication, sale and installation of asbestos products.
Johns-Manville mines, processes and sells products containing asbestos to independent fabricators who then shape, cut and otherwise create a finished product for their customers’ needs. During the period 1940-55, Johns-Manville sold products containing asbestos to Reid-Hayden, which fabricated them into finished products.
Most of these products were fabricated and some were warehoused two stories above the office where Mrs. Harig was employed as a secretary. In addition, Reid-Hayden also warehoused other products containing asbestos in other buildings on its premises.
Mrs. Harig alleged in her complaint that part of her secretarial duties with Reid-Hayden required her to enter areas where employees of the firm were working with products containing asbestos, as well as handling files that had been exposed to asbestos dust. It was during the course of this employment that Mrs. Harig alleges that she was exposed to Johns-Manville’s asbestos products. It is alleged that that exposure directly and proximately caused her to develop a malignant mesothelioma, described as a cancer of the pleura and pericardium.
Mrs. Harig left the employ of Reid-Hayden in January of 1955 and since that date has had no known asbestos exposure. At no time during the course of her employment with *73 Reid-Hayden or subsequent thereto, did Mrs. Harig ever purchase or work directly with any of Johns-Manville’s products. After leaving Reid-Hayden, Mrs. Harig was employed by the Western Maryland Railway Co. She retired on June 1, 1977.
Until November, 1975, Mrs. Harig claimed to be in good health. But soon thereafter she developed a cough. In 1976, she was hospitalized on three occasions. On October 27,1976 her condition was diagnosed as malignant mesothelioma, and she was so advised by her physicians. Mrs. Harig alleges that she did not suffer any consequential damages from her exposure to products containing asbestos until after 1975.
The complaint filed in the District Court consisted of three counts and sought both compensatory and punitive damages. Count I alleged negligence; Count II alleged a breach of warranty; and Count III alleged strict liability due to Johns-Manville’s sale of its products in a defective and dangerous condition. Johns-Manville raised the defense that the claim was barred by limitations. On March 2, 1978 the District Court dismissed Count II and the punitive damage claim as to Count III. It concluded, however, that with regard to the applicable statute of limitations “there are involved in this case two questions of law of the State of Maryland, the answers to which may be determinative of this case.” Finding that “there are no controlling precedents among the decisions of the Court of Appeals of Maryland as to those questions,” the District Court certified the two questions previously set forth concerning the time at which a cause of action accrues in situations involving the latent development of disease.
Code, § 5-101 of the Courts Article provides: “A civil action at law shall be filed within three years from the date it accrues unless another provision of the Code provides a different period.” Mrs. Harig contends that because of the latent nature of her illness, her cause of action, whether framed in terms of traditional negligence concepts or in terms of strict liability, did not accrue until she knew or reasonably should have known of the injury — at the earliest when the cough developed in 1975. She urges that we so construe the statute and thereby apply the “discovery rule,” previously
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recognized in Maryland, but heretofore limited to cases of professional malpractice.
1
See, e.g., Watson v. Dorsey,
Johns-Manville contends that the statute of limitations began to run, at the latest, when Mrs. Harig was last exposed to its asbestos products. It characterizes Mrs. Harig’s latent disease as “[l]ater injurious developments . . . merely elements of damage ... not in and of themselves individual causes of action.” Under this construction, Mrs. Harig’s cause of action would have been time-barred three years after she left Reid-Hayden.
I
In a case in which limitations is an issue, it is necessary to ascertain the date from which the cause of action accrues. The certified questions involve the determination of when a cause of action accrues in situations in which the occurrence of a wrong (exposure to a deleterious substance) and the subsequent development and discovery of a latent disease are not contemporaneous. Judge Finan, speaking for the Court in
Mattingly v. Hopkins,
“Like most general rules of law, those pertaining to ‘limitations’ become less than profound when an attempt is made to apply them to specific cases. Much has been written as to when ‘limitations’ should start to run. Some courts have held the cause of action accrues when the defendant commits his wrong, others when the plaintiff discovers the wrong, and still others have held that it does not accrue until the maturation of harm. Sometimes the happening of the wrong, the knowledge of it and the maturation of the harm are simultaneous. When this occurs the recognition of the accrual of the cause of action is simple, when these elements happen sequentially it can become complex. Furthermore, there are nuances of difference in the accrual of the cause of action in cases arising out of actions ex contractu, as distinguished from actions ex delicto, and a further hybridization of actions arising out of professional malpractice and otherwise.”
While § 5-101 mandates when suit on a civil action at law is foreclosed, it does not define the word “accrues” and thus does not indicate when the three-year time period is triggered. Absent such statutory definition, the question of when a cause of action accrues is left to judicial determination.
Raymond v. Eli Lilly & Co.,
117 N. H. 164,
In Maryland, the general rule is that limitations against a right or cause of action begin to run from the date of the alleged wrong and not from the time the wrong is discovered.
Killen v. Geo. Wash. Cemetery,
Ordinarily, a potential tort plaintiff is immediately aware that he has been wronged. He therefore is put on notice that the statute of limitations begins to run from the date of the alleged wrong.
R. J. Reynolds Tobacco Co. v. Hudson,
Other jurisdictions have applied the discovery rule, in various factual situations, for similar or analogous reasons. One such theory is that a cause of action simply cannot exist until there has been an injury or consequential damage which is discoverable by a reasonably prudent plaintiff.
Ayers v. Morgan,
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Maryland first recognized the discovery rule in
Hahn v. Claybrook,
“The ground of the cause of action in this case, was the discoloration of the plaintiffs skin by the use of the drug called argentum oxide, and the statute began to run from the time of- the discovery of the alleged injury therefrom.” Id. at 187.
The
Hahn
decision formed the basis for subsequent application of the discovery rule to an action for negligent design and construction of a wall.
Callahan v. Clemens,
The discovery rule received its most comprehensive articulation in
Waldman v. Rohrbaugh,
In the period from 1969 to 1972, we extended the applicability of the discovery rule to all cases of professional malpractice. In
Mattingly v. Hopkins,
“We see no basic distinction between the application *79 of the ‘discovery rule’ in a medical malpractice case and in the instant case, which assuming that engineering is a profession, is in essence a professional malpractice situation.”
Similarly, in
Mumford v. Staton, Whaley & Price,
Subsequently, we recognized the applicability of the discovery rule to cases of accounting malpractice,
Leonhardt v. Atkinson,
In our judgment, the critical factor, which precipitated our adoption of the discovery rule in the professional malpractice cases, is equally present in the instant case. We noted in a professional malpractice case against an accounting firm that the rule “gives to the individual exercising reasonable diligence the full benefit of the statutory period in which to file suit, while at the same time protecting the defendant from ‘stale claims,’ as was intended by the statute.”
Feldman v. Granger, supra,
In construing statutes of limitation worded similarly to § 5-101 of the Courts Article, the clearly discernible trend of recent decisions in state and federal courts favors application of the discovery rule in latent disease cases.
Reynolds Tobacco Co. v. Hudson,
The first application of the discovery rule to a latent disease case was the Supreme Court’s decision in
Urie v. Thompson,
A number of subsequent decisions, citing
Urie,
have recognized the discovery rule’s application to cases involving
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latent disease. The Second Circuit, construing Connecticut law, reached this conclusion on the basis that a contrary result would be unreasonable and would nullify
any
right to recover for many latent and insidious diseases.
Ricciuti v. Voltarc Tubes, Inc.,
The similarities between unknown professional malpractice and latent disease cases underlie a number of recent decisions recognizing the discovery rule in the latter type case. The Fifth Circuit explicitly recognized the analogy between the discovery rule applied in medical malpractice cases and court decisions holding that a cause of action for injuries from exposure to deleterious substances over a period of time does not accrue until the effects are manifest.
Borel v. Fibreboard Paper Products Corp.,
The Supreme Court of New Jersey has given broad application to the discovery rule “whenever equity and justice” demand, concluding that each case requires a balancing of the parties’ competing equities.
Lopez v. Swyer,
62 N. J. 267,
It is thus clear that authorities from other jurisdictions recognize the applicability of the discovery rule in contexts other than professional malpractice. We think our earlier decisions applying the discovery rule to professional malpractice actions are properly to be extended to cases involving, as here, latent disease. Both classes of tort plaintiffs may, in appropriate circumstances, be “blamelessly ignorant” of the fact that a tort has occurred and thus, ought not be charged with slumbering on rights they were unable to ascertain. Therefore, in situations involving the latent development of disease, a plaintiff’s cause of action accrues when he ascertains, or through the exercise of reasonable care and diligence should have ascertained, the nature and cause of his injury.
II
We think Mrs. Harig’s strict liability action should be treated the same under § 5-101 as her negligence action.
In
Phipps v. General Motors Corp.,
Questions of law answered as herein set forth; costs to abide the result.
Notes
. Johns-Manville has characterized this construction of the statute as the “maturation of harm” rule, a rule which we have refused to adopt.
See, e.g.,
Watson v. Dorsey,
. The New Jersey court suggested that determinative factors in the balance may include'the nature of the alleged injury, the availability of witnesses and written evidence, the time lapse since the alleged wrongdoing, whether the delay was to any extent deliberate, and whether it unusually prejudiced the defendant. Lopez v. Swyer, supra.
. Johns-Manville argues that the discovery rule, as applied to Erofessional malpractice, should not be extended to cases of latent disease, uttressing its argument with the following dictum contained in a footnote in Atwell v. Retail Credit Co.,
“The exception for professional malpractice cannot fairly be described as a possible opening wedge to a general change in the Maryland rule; it is an exception of long standing, having been applied as early as 1917. The reasons for Maryland’s application of the ‘discovery of the wrong’ rule in professional malpractice cases — the relation of trust, reliance on professional expertise, and the likelihood that injury will not occur simultaneously with *80 the wrongful act or omission — are all peculiarly related 'to the nature of professional conduct.” Id. at 1010 (fn. I).
While the three factors outlined in Atwell may be present in the professional malpractice cases, we have never adopted such a tri-partite formulation. The critical factor in the instant case is the inherently unknowable character of the cause of action. Just as in the professional malpractice cases, however, our decision in this matter does not signal “a general change in the Maryland rule.”
