(YAHOO/KAKE) - A doctor in Florida died several weeks after receiving a cornavirus vaccine. It is not clear yet whether his death on Monday was in any way related to the shot he received in mid-December.  

Dr. Gregory Michael, 56, an OB-GYN at Mount Sinai Medical Center in Miami Beach. He died after having a hemorrhagic stroke, which resulted from a lack of platelets, Yahoo reports. 

His death is being investigated by medical examiners in Miami. 

"The CDC and FDA are responsible for reviewing COVID-19 vaccine safety data and presenting that information for federal recommendations on vaccine administration," communications director Jason Mahon said in an email. "The state will continue to provide all available information to the CDC as they lead this investigation."

In a Facebook post, Michael's wife, Heidi Neckelmann, said he was going to the emergency room three days after he got his shot, because of dots he found on his skin. The dots, he thought, indicated internal bleeding.    

The condition she said led to his stroke, called thrombocytopenia, results from a lower-than-normal number of platelets, which help the blood clot.

In very rare instances, the measles, mumps and rubella vaccine has been linked to thrombocytopenia in children, according to a 2003 study. The condition can also be caused by cancer, anemia, heavy drinking, viruses, some genetic conditions, toxic chemicals and medications such as diuretics and the rarely used antibiotic chloramphenicol.

Pfizer, which along with its partner BioNTech made the vaccine the man received, said in a statement that it was aware of the death.

"We are actively investigating this case, but we don't believe at this time that there is any direct connection to the vaccine," the statement said.

The company said that there is not indication that the vaccine could be connected to thrombocytopenia.

The companies who produce the COVID-19 are required by the government to look for and note health problems that occur close in time to vaccination and investigate whether or not they're connected to a shot. 

"It is important to note that serious adverse events, including deaths that are unrelated to the vaccine are unfortunately likely to occur at a similar rate as they would in the general population," according to the statement, which ended by saying: "Our immediate thoughts are with the bereaved family."

The U.S. Centers for Disease Control and Prevention said in a statement late Wednesday that it and other federal agencies regularly review vaccine safety data, as does an independent committee of vaccine safety experts.

"It’s been a difficult year as each of us grapple with a worldwide pandemic," the statement reads.

Five million people have been vaccinated against COVID-19. "Use of COVID-19 vaccines is the next step in our efforts to protect Americans and reduce the impact of the COVID-19 pandemic," the statement said.

In her Facebook post, Neckelmann described Michael as the "love of her life" and blamed his death on the vaccine.

"He was a very healthy 56-year-old, loved by everyone in the community, delivered hundreds of healthy babies and worked tireless through the pandemic," she said in the post, which had received more than 1,400 comments as of 8 p.m. Wednesday.

She indicted that a team of doctors from across the United States attempted to raise his platelet count for two weeks tried for two weeks "to no avail." Until the hemorrhagic stroke, the doctor was conscious. He died minutes after the stroke. 

Michael was a vaccine advocate, his wife said, before raising doubts about its safety.

"I believe that people should be aware that side effects can happened, that it is not good for everyone and in this case destroyed a beautiful life, a perfect family, and has affected so many people in the community," she wrote. "Do not let his death be in vain please save more lives by making this information news."

According to his professional website, Michael was a Miami native who practiced at Mount Sinai for 12 years.

Michael attended medical school at St. George's University in Grenada and completed his OB-GYN residency at Saint Barnabas Medical Center in Livingston, New Jersey.