DIAGNÓSTICOS DA AMÉRICA S.A.

Publicly-Held Company
Corporate Taxpayer's ID (CNPJ/MF): 61.486.650/0001-83
Company Registry (NIRE): 35.300.172.507

MATERIAL FACT

Diagnósticos da América S.A. ("DASA"), in compliance with the article 157, paragraph 4th, of the Law No. 6.404 of December 15th, 1976, as amended, and in the Ruling issued by the Brazilian Securities and Exchange Commission ("CVM") No. 361 of March 5th, 2002, as amended, hereby informs that it has received on this date the attached communication from Cromossomo Participações II S.A. ("Offeror"), its controlling shareholder, regarding the Offerer's intention to launch a voluntary tender offer to acquire up to the total ordinary shares issued by DASA, and held by DASA's non-controlling shareholders, to delist the DASA's shares from the special listing segment of securities market, known as Novo Mercado, operated by BM&FBOVESPA S.A. - Bolsa de Valores, Mercadorias e Futuros, without the cancellation of DASA's registry with the CVM as securities issuer category "A", in the terms of the CVM's Ruling No. 480 of December 7th,
2009, as amended ("Offer").
The Offer is subject to the conditions described in the attached communication.
DASA will keep the market in general and its shareholders informed about the matter addressed herein.
This material fact is for information only and does not constitute a securities tender offer.
Barueri, April 27, 2015.

Paulo Bokel Catta-Preta Investor Relations Officer Annex with Material Fact of April 27, 2015 The content of this Annex is not a Diagnóstíco da América S.A. manifestation.



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