Success Stories: Thanks to PP, Chinese Scientist Specializing in Infectious Disease Received O1-A Approval in Only 10 Days


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On June 7th, 2019, we received another O1-A (Individuals with Extraordinary Ability or Achievement) approval for a Scientist in the Field of Infectious Disease (Approval Notice).

General Field: Infectious Disease

Position at the Time of Case Filing: Scientist

Country of Origin: China

State of Residence at the Time of Filing: California

Approval Notice Date: June 7th, 2019

Processing Time: 10 days (Premium Processing Requested)

Case Summary:

In this case, we worked with a Chinese scientist specializing in infectious disease to help him file an O1-A (Individuals with Extraordinary Ability or Achievement) petition. With our guidance, his O1-A petition was approved in just 10 days thanks to Premium Processing (PP).

What went into the O-1A dossier?

After carefully reviewing our client’s various achievements and looking into his research projects, we established that his findings on molecular biology and virology techniques to prevent the spread of infectious disease could facilitate clinical trials and vaccine development in order to treat infectious diseases such as HIV and influenza. We also incorporated data such as our client’s citation count, publication record, and peer review experience. At the time of filing, these numbers stood at 195 citations, 20 peer-reviewed scientific articles, one published letter to the editor, and 30 performance of peer review services.

As part of our legal strategy, our team helped him select suitable recommenders who could support his O1-A case. These recommenders are composed of other well-known experts in the field of infectious disease, and one of whom had this to say about our client’s work: “As shown by his impressive record, [Client]’s unique combination of research experience has provided him with a particularly comprehensive understanding of HIV/AIDS. Not only is [Client] capable of coordinating groundbreaking research in the field, but he is able to apply his discoveries practically to optimize neutralizing antibodies for the design of therapeutic agents. It is for these reasons that [Client]’s expertise constitutes an invaluable asset to the field of infectious disease as well as to the healthcare sector in general, which benefit immeasurably from his research”.

Our client has already begun to work for his US petitioning employer, a biotech firm based in California, with his approved O1-A visa to continue his valuable research which could bring about enormous impact on the US medicine and healthcare industries. We thank him for choosing us to represent his O1-A petition, and we wish him the very best in his future endeavors in the field of infectious disease.

Who qualifies for the O petition?

O-1 visa benefits aliens of extraordinary ability in the sciences, arts, education, business or athletics. The O-3 visa is for dependents (spouse and children) of O-1 visa holders. Our vast experience dealing with employment-based visa petitions armed us with unprecedented insights into building winning petitions. To learn more about O Visa, please visit:

North America Immigration Law Group (Chen Immigration Law Associates) is a U.S. immigration law firm dedicated to representing corporations, research institutions, and individuals from all 50 U.S. states regarding I-140 immigration petitions. We specialize in employment-based immigration petition and have a proven record of high success rate for the categories of: EB2-NIW (National Interest Waiver), EB1-A (Alien of Extraordinary Ability), EB1-B (Outstanding Researcher/Professor) and O-1 (Alien of Extraordinary Ability).

Our Ten Thousand I-140 Approvals Provide Unprecedented Insight into the USCIS Adjudication Trend

With more than 16,000 EB-1A, EB-1B, EB-2 NIW and O-1 cases approved, we have first hand information on the manner in which the USCIS adjudicate I-140 cases. As the USCIS has constantly changed its adjudication standards for the EB-1A, EB-1B and EB-2 NIW categories, our firm's huge database of successful cases gives you unprecedented insight to USCIS adjudication trends. We carefully analyze the data for all of our cases and apply the results of our analyses toward giving our clients up-to-date advice and adapting our strategies such that we remain on par with the ever-shifting landscape of immigration law in the U.S. With us, you will always have access to important updates, strategies, and information so that you can make the most informed decisions about your case.

We Have Helped Hundreds and Thousands of Clients with Credentials and Backgrounds Similar to Yours

With our exceedingly large number of successful petitions, no matter what credentials you have, no matter your background and field of expertise, no matter your visa status or nationality, chances are we have helped hundreds or even thousands of clients just like you. Our clients are usually impressed with how well we understand their research and work. Our insight and understanding stems from the fact that we have handled many cases with elements similar to yours already, and this helps us devise the best strategies for each individual petition.

Vast Majority of Clients Came to Us Because of Referrals

For years, our firm has attracted new clients based solely on word of mouth, recommendations, and the positive collaboration experiences shared with them by their friends and family. We take pride in our reputation and work hard to ensure that we provide a green card application experience that our clients are happy to share with their friends and colleagues. That is how our approved cases grew from 600 in 2013 to over 3,500 in 2019.

If you are interested in filing the green card, please send your CV to for our free evaluation. Our attorneys will email you back with the evaluation result within 24 hours.

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