While the hospital will not comment publicly on his condition, Evgenia says their official diagnosis is an acute intoxication by an unidentified substance -- something she later put bluntly as "poisoning."
RELATED: The uncertain future of 2017
The uncertain future of 2017
The uncertain future of 2017
RUSSIA'S GROWING INFLUENCE: Russian leader Vladimir Putin looks to position his nation as an alternate ally to countries such as the Philippines and Turkey who have been traditionally allied with the U.S.. Putin's Russia, accused of influencing the U.S. presidential election, could seek to cement their influence by providing support to other populists facing elections this year. REUTERS/Yuri Kochetkov/Pool
SYRIA'S SHAKY PEACE: A truce deal brokered by Russia and Turkey faces challenges as clashes between rebel and government forces continue. A lasting peace deal could prove elusive as the large number of warring factions seek to protect their own interests and territories. REUTERS/Khalil Ashawi
ISIS-INSPIRED ATTACKS CONTINUE: Following the highly orchestrated Islamic State attacks on Paris and Brussels, the world has witnessed a spate of attacks by individuals who appear to be inspired by the militant group, rather than in direct contact with them. 2017 looks set to see a continuation of these types of attacks as the year began with a mass shooting at a Turkish nightclub where the motive still remains unclear. REUTERS/Eric Gaillard
THE TRUMP BARGAIN: As President Trump takes office, the white working class that propelled him to the White House will be watching closely to see if he can bring back jobs as promised throughout the campaign. It remains to be seen if the divisive politics that characterized the bitter campaign will continue as Trump takes over the helm of a divided nation. REUTERS/Mike Segar
MERKEL'S POLITICAL FUTURE IN JEOPARDY: German Chancellor Angela Merkel's support for accepting refugees risks costing her re-election when Germans go to the polls later in 2017. Following the Berlin Christmas market attack and in the run-up to the election, Merkel will continue to face demands to take a much tougher line on immigration and security. REUTERS/Hannibal Hanschke
BREXIT IN REALITY: Britain will have to navigate how and when to trigger article 50 beginning the process to leave the European Union. How the decision affects immigration, trade and British citizens living in the EU member states should become clearer this year. REUTERS/Dylan Martinez
VENEZUELA CRISIS DEEPENS: The oil-rich but cash-strapped nation faces a dire economic panorama of worsening food and medicine shortages as its socialist system continues to unravel. With few signs of financial relief on the horizon, President Nicolas Maduro faces escalating street protests as patience wears thin even among his supporters. REUTERS/Carlos Eduardo Ramirez
RACE RELATIONS IN FOCUS: With the retrial of former police officer Michael Slager in the shooting death of Walter Scott slated for March, the Black Lives matter movement and other groups protesting racial injustice will be watching for a verdict. REUTERS/Jonathan Bachman
MIGRANTS ON THE MEDITERRANEAN: As temperatures rise, the number of migrants making the dangerous crossing to Europe could increase again despite a record number of deaths of those traversing the Mediterranean in 2016. REUTERS/Yannis Behrakis
PIPELINE DREAMS AND NIGHTMARES: The success of the Standing Rock protesters to halt the Dakota Access pipeline has set a precedent for how environmental groups could disrupt planned pipeline projects. REUTERS/Stephanie Keith
CLIMATE CHANGE DISCORD: Top scientists say Trump's vow to pull the United States out of the Paris climate-warming accord would make it far harder to develop strategies to lessen the impact of global warming. Though temperatures in 2017 are expected to dip from the record highs of 2016, how the world views climate change and what to do about it will remain a hot topic. REUTERS/Alister Doyle
RIGHT-WING RISING: France's National Front leader Marine Le Pen will likely compete in a presidential run-off election in May that will test whether her brand of populism resonates in a nation that has been hit with attacks on Paris and Nice. REUTERS/Pascal Rossignol
RAQQA OFFENSIVE ESCALATES: An operation by a U.S.-backed alliance of Syrian armed groups' to retake the northern city of Raqqa, the de facto capital of Islamic State in Syria, looks set to continue in tandem with the offensive on the militant group's Iraq stronghold of Mosul. Trump's campaign promise of a secret plan to fight Islamic State will be forced into the spotlight. REUTERS/Rodi Said
THE DOW'S CLIMB: U.S. stocks saw solid gains in 2016, buoyed by a post-election rally that fueled the Dow Jones Industrial Average to approach 20,000 points but whether the rally will contine in 2017 is up for debate. REUTERS/Brendan McDermid
A NEW ARMS RACE: With both Putin and Trump planning to modernize their nation's nuclear arsenal, the prospect of a looming arms race is back on the table. When asked to clarify a tweet on nuclear capabilities, Trump said "Let it be an arms race. We will outmatch them at every pass and outlast them all." REUTERS/Joshua Roberts
DROUGHT THREATENS FAMINE: Charities have repeatedly warned about the threat of renewed famine as Somalia continues to be plagued by poor rains and conflict, as well as shortages of aid. REUTERS/Feisal Omar
TURKEY'S MEDIA CRACKDOWN: Turkey now imprisons more journalists than any other nation following a crackdown in the wake of the nation's coup attempt, according to the CPJ. The extent of the crackdown has worried rights groups and many of Turkey's Western allies, who fear President Erdogan is using the emergency rule to eradicate dissent. REUTERS/Murad Sezer
SNAPCHAT DEBUT: Snapchat filed for an initial public offering in 2016 putting the messaging app a step closer to the biggest U.S. stock market debut since 2014. The Venice, California-based company could go public as soon as March and be valued at $20 billion to $25 billion, making it the largest IPO since Chinese e-commerce giant Alibaba Group Holding Ltd. REUTERS/Brendan McDermid
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"This is poisoning," Evgenia wife said. "There are no other options left."
Evgenia says she has sent DNA samples to Israel and France for further toxicology testing.
"Anything can happen to people who choose to stand up to Putin," she said. "We are hoping to find some answers."
"We got a lot of killers," Trump said. "What, you think our country is so innocent?"
Kara-Murza "knew that there was no moral equivalence between the United States and Putin's Russia. I repeat, there is no moral equivalence between that butcher and thug and KGB colonel and the United States of America, the country that Ronald Reagan used to call a shining city on a hill," McCain said. "To allege some kind of moral equivalence between the two is either terribly misinformed or incredibly biased. Neither, neither can be accurate in anyway."
Sen. Marco Rubio has also expressed concerned over Kara-Murza's illness, and believes Putin should be held accountable if any evidence is discovered of foul play.
"Vladimir Putin does not deserve any benefit of the doubt here, given how commonplace political assassinations and poisonings have become under his regime," said Rubio. "I am praying that Kara-Murza's condition improves."
RELATED: Vladimir Putin throughout the years
Vladimir Putin throughout the years
Vladimir Putin throughout the years
P362575 05: A class photo with Vladimir Putin, (fourth row, second from left) dated 1966 in St. Petersburg, Russia. (Photo by Laski Diffusion)
368975 01: (AMERICAS ONLY) FILE PHOTO: Russian President Vladimir Putin, right, poses for a photograph in this file photo with his parents Maria and Vladimir Putin in1985 just before his departure to Germany. Putin was sworn in as Russia''s second democratically elected president May 7, 2000, pledging to restore Russia as a great power. (Photo by Laski Diffusion/Newsmakers)
ITAR-TASS: LENINGRAD, USSR. Vladimir Putin seen with his wife Lyudmila and daughter Maria. File photo from family archive was taken in spring 1985. (Photo ITAR-TASS) (Photo by TASS via Getty Images)
St, petersburg mayor anatoly sobchak and austrian chancellor's wife christine vranitzky during a ceremony to name 'austria square' in downtown st, petersburg, austria has pledged to restore the square, future president of russia, vladimir putin, looks on, far left, september 1992. (Photo by: Sovfoto/UIG via Getty Images)
President George Bush meets with President Vladimir Putin at the Catherine Palace in St. Petersburg. Bush was meeting with Putin to thank him for signing the UN resolution demanding disarmament of Iraq. (Photo by ?? Brooks Kraft/CORBIS/Corbis via Getty Images)
KRASNODAR, RUSSIA: Russian acting President Vladimir Putin (L) talks to a boy (R) during his visit to the Children's regional clinic hospital in Krasnodar 11 February 2000. Putin arrived in Krasnodar for a two-day visit to take a part in the All Russia Conference on emergency measures to stabilise and develop the Russian agro-industrial complex. (ELECTRONIC IMAGE) (Photo credit should read SERGEI CHIRIKOV/AFP/Getty Images)
Uzbek president islam karimov helping rf president vladimir putin put on a traditional robe, uzbekistan, december 1999. (Photo by: Sovfoto/UIG via Getty Images)
President George W. Bush and First Lady Laura greet President Vladimir Putin and his wife Lyudmila outside of the Catherine Palace in St. Petersburg. Bush was meeting with Putin to thank him for signing the UN resolution demanding disarmament of Iraq. (Photo by ?? Brooks Kraft/CORBIS/Corbis via Getty Images)
MADRID, SPAIN - JANUARY4: Russian President Vladimir Putin (R) and Spanish Prime Minister Jose Maria Aznar (L) pose with their wives Ludmila Putin (2nd L) and Ana Botella before their lunch at Moncloa Palace June 14. Putin said he had no reason to believe the arrest of media magnate Vladimir Gusinsky was politically motivated but vowed to examine the case, which has stirred stormy protest in Moscow. (Photo credit should read SERGEI KARPUKHIN/AFP/Getty Images)
(GERMANY OUT) Vladimir Putin - Politician, Mayor St. Petersburg, Russia - signs an agreement about the marketing of inventions. Second Mayor and Senator of Economics of Hamburg Hans-Juergen Krupp (right) (Photo by Ambor/ullstein bild via Getty Images)
Moscow, russia, outgoing russian president boris yeltsin (r) shaking hands with russian prime minister and acting president vladimir putin (l) as he leaves moscow's kremlin, the seat of russian power,1999. (Photo by: Sovfoto/UIG via Getty Images)
Russian prime minister vladimir putin seen casting his vote during the elections to the state duma, at the polling station #2026 in moscow's kosygina street,moscow, russia, december 19, 1999. (Photo by: Sovfoto/UIG via Getty Images)
N362234 01: (FILE PHOTO) Russian Prime Minister Vladimir Putin visits Uzbekistan President Islam Karimov on August 16, 1999. President Boris Yeltsin announced on national television Friday, Dec. 31, 1999 that he had resigned and presidential elections will be held within 90 days to replace him. Yeltsin said he was stepping down immediately because he wanted Putin to succeed him. Putin, the country's most popular politician, immediately took control of the government and will serve as acting president until the elections. (photo by Laski Diffusion/Liaison Agency)
SEVEROMORSK, RUSSIA - APRIL 7: Russian President-elect Vladimir Putin watches the tactical exercises of Russia's Northern Fleet in the Barentsevo Sea, 06 April 2000. Vladimir Putin spent the night underwater in a nuclear submarine near the Arctic Circle. (Photo credit should read AFP/AFP/Getty Images)