DIAGNÓSTICOS DA AMÉRICA S.A.

NIRE 35.300.172.507

CNPJ/MF n.º 61.486.650/0001-83

Publicly-held Company

MATERIAL FACT

Diagnósticos da América S.A. ("Company" or "DASA") informs, in addition to the information in the material facts disclosed on January 29, 2014, in connection with the voluntary tender offer to acquire shares representing a controlling interest in DASA made by CROMOSSOMO PARTICIPAÇÕES II S.A. ("Offering Party"), that it has been notified by the Offering Party, by means of a letter attached as Exhibit I hereto, of the decision of CVM and the new amendment made to the tender offer notice disclosed on December 23, 2013, to modify the voluntary

tender offer to acquire shares of the Company ("Amendment").

The Amendment was published by the Offering Party on the date hereof in the newspapers "Jornal Diário, Comércio, Indústria & Serviços", "Valor Econômico" and and "Diário Oficial do Estado de São Paulo" ("Public Note"). newspapers. In addition, the Amendment was made available by the Company through the IPE System - CVM, in the website www.cvm.com.brand

in the site of Company's Investor Relations www.dasa3.com.br.

DASA will keep its shareholders and the market duly informed of the evolution of the subjects mentioned by this material fact.

Barueri, January 30, 2014.

Paulo Bokel Catta-Preta

Diretor de Relações com Investidores

Exhibit to the Materia! Fact disclosed on January 30,2014

The content of of this Exhibit does not constitute a statement by Diagn6sticos da América S.A. (Free Translation)

This letter is a free translation of the Letter dated January 29, 2014.
DIAGNÒSTICOS DA AMÉRICA S.A. Jurua Avenue, No. 434,Alphaville
Postal Code 06455-01O - Barueri, SP

Att: Paulo BokelCatta-Preta lnvestor Relations Officer Phone:55 (11) 4197-5509

Fax: 55 (11) 4197 5516 e-mail : i r @dasa . com . b r

Dear Sirs,

January 29, 2014

CROMOSSOMO PARTICIPAçòES Il S.A., a Brazilian corporation ( sociedade por açoes) with registered office in the City of Sao Paulo, State of Sao Paulo, at Joaquim Floriano Street, No. 413, floor 112 - part, ltaim Bibi, Postal Code: 04534-011, enrolled as a Taxpayer under CNPJ/MF No.

14.167.188/0001-71, herein represented pursuant to its bylaws ("Offeror"), hereby communicates that the Collegiate Body of the Brazilian Securities Commission ("CVM"), through Official Letter/CVM/SRE/GER-1/N°22/2014 sent on the present date, ("Official Letter'') and attached hereto as EXHlBIT l, granted authorization far the Offeror to adopt the differentiated procedure of unification of voluntary public offerings, pursuant to the provisions of artide 34, paragraph 2"d, of CVM lnstruction n° 361, dated March 05, 2002, as amended, ("CVM lnstruction 361"), far the acquisition of up to the entirety of the shares issued by Diagnésticos da América S.A. (''DASA" and "Offering", respectively), specifically: (i) the simple voluntary offering,which aims at the acquisition of shares issued by DASA in reliance upon the provisions of artide 2"d, item IV of CVM lnstruction

361; and (ii) the voluntary offering far the acquisition of the control, provided for in artide 257 et

seq., of the Brazilian Corporations Law, and in artide 2"d, item V of CVM lnstruction 361. lt should be noted that the rules set forth above are supplemental and represent no conflict that could eventually expose the addressees of the Offering to uncertainties regarding their decisions.

In the event the shareholders of the Company tender less than the number of shares providing the Offeror contrai of the Company, which is a condition to the voluntary public offer of acquisition of contrai, according to the provisions of art. 257, paragraph 2nd, of the Brazilian Corporations Law and artide 32, item Ili of CVM lnstruction 361, resulting in the voluntary public offering of acquisition of contro! not to succeed, the Offering shall be completed under a simple voluntary offering, which is not conditioned upon the tender of a minimum number of shares. Consequently, the determination of the form of the offering shall follow the provisions of the Brazilian Corporations Law and the applicable CVM rules.

Additionally, the Securities Registration Superintendence, through the Official

Letter/CVM/SRE/GER-1/n°20/2014 dated January 24, 2014, suspended the count ofthe maximum
45-day term for the consummation of the Offering auction referred to in artide 12, § 1st of CVM lnstruction 361, from the date the letter was issued up to the date the Offeror became aware of the decision rendered by the Collegiate Body of the CVM on the request far unification of the offerings. Accordingly, the date of consummation of the auction was postponed to February 1O, 2014 at 4:00 p.m. (Brasilia time) in accordance with the provisions of artide 5th, paragraph 3rd, item l, of CVM lnstruction 361.
Consequently, the deadline far condusion of the proceedings related to the application far eligibility for the auction is also postponed to February 07, 2014, until 6:00p.m. (Brasilia lime) and the date of sett ement of the auction is postponed to February 13, 2014.

Exhibitto the Material Faet disclosed an January 30,2014

The content of ofthis Exhibit does not constitute a statement by Diagn6sticos da América S.A. (Free Translation)

This letter is a free translation of the Letter dated January 29,2014.

As a result of the foregoing, the Offeror hereby notifies you that on January 30, 2014, it shall publish an amendment to the notice of announcement of the voluntary public offer published on December 23, 2014, to reflect the amendments to the terms of the Offering. For your reference, the Offeror is attaching hereto as EXHIBIT Il a copy of such amendment.

We remain at your disposal for any further clarification or additional comments deemed necessary on this subject.

Yours very truly,

Cromossomo Participaçoes Il S.A.
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