Washington: The woman who first tried the coronavirus vaccine herself in the US, shared her experiences. In March, 43-year-old Jennifer Holler was given the first dose of the corona vaccine in March in the first round of the vaccine study. Now, even after 16 weeks, her body has not been shown to have any negative effects. Jennifer, a resident of Seattle in the US, has said that she is feeling 'very good'. Jennifer Holler was given a dose of Corona's mRNA-1273 vaccine. Studies are being done about this vaccine at the KP Washington Research Institute of America. According to a report by Como News of America, no negative effects of the vaccine were seen on the body of Jennifer, who worked as an operations manager in a tech company. This vaccine has been made by the US National Institute of Health and Moderna Company. The company says that due to this vaccine, no person can get corona infection, because the coronavirus is not present in it. On May 18, Moderna announced that the results of the Phase-1 trial have come positive. Moderna had also said about her vaccine that the phase-3 study of vaccine will start in July. There is a plan to give vaccine doses to 30 thousand people in the third round. Also Read- Unlikely new coronavirus would be eliminated: Dr Mike Ryan (WHO) Corona patients cross figure of two and a half lakh in Pakistan, 5 thousand died so far Know what is "Solar Apex", will travel 122,640,000 miles in 100 years