#### Richelle Crowe, and Infant, by Cindy Dyer, Her Mother and Natural Guardian, Respondent, v Lederle Laboratories, a Division of American Cyanamid, Appellant, et al., Defendant.

— Yesawich, Jr., J.

Appeal from that part of an order of the Supreme Court at Special Term (Harlem, J.), entered September 24, 1985 in Broome County, which granted plaintiffs motion to compel discovery and inspection of a report prepared by defendant Lederle Laboratories.

In this action brought to recover damages for personal injuries plaintiff is alleged to have sustained because of an adverse reaction following innoculation with a vaccine of defendant Lederle Laboratories (hereinafter defendant), plaintiff moved to discover certain documents prepared by defendant.

Initially, plaintiff’s counsel wrote defendant to put the latter on notice of the claim, which assertedly was borne out by medical evidence in counsel’s possession. In response, defendant requested the medical evidence be made available for evaluation and plaintiff complied. Thereafter, defendant advised that plaintiff’s medical course was not typical of postvaccination encephalopathy following administration of diphtheria, tetanus toxoid and pertussis vaccine, and in effect denied liability.

Meanwhile, defendant’s professional medical services and legal departments each compiled files on plaintiff’s claim, in the course of which the report at issue was generated; the report, produced by the professional medical services department and then apparently retained in the legal department file, is said to contain expert medical opinions rendered as a result of plaintiff’s claim letter.

Defendant maintains this report was material prepared for litigation and hence not discoverable (CPLR 3101 [d]). Affidavits offered on defendant’s behalf attest that its professional medical services department does not receive medical records of putative claimants or issue medical reports with respect thereto unless first directed to do so by the legal department. The moving papers, however, contain excerpts of testimony *876elicited from defendant’s former manager of product claims, at his examination before trial, which reveal dual reasons for creating these files: one of which was to serve as a monitor of product complaints, the other being preparation for litigation.

In an attempt to clarify this apparent inconsistency, Special Term allowed defendant "the specific opportunity to produce an Affidavit stating that when * * * defendant receives notice of alleged brain damage to infants linked to its DTP vaccine, it does not, as a regular practice investigate whether or not its vaccine was causally related to such damage”; no such affidavit was forthcoming. Inasmuch as defendant failed to adequately buttress its contention that the report of its professional medical services department relating to plaintiff served but one exclusive purpose, and mixed purpose documents are not within the scope of CPLR 3101 (d) (2) *(Vandenburgh v Columbia Mem. Hosp.,*91 AD2d 710, 711), Special Term properly concluded the report was subject to discovery.

Order affirmed, with costs. Main, J. P., Weiss, Mikoll, Yesawich, Jr., and Harvey, JJ., concur.