The FDA gave Elon Musk the go-ahead to trial his Neuralink brain implants on humans.
The FDA authorized the first breathalyzer test that detects COVID-19.
A 57-year-old man received the first transplanted heart from a genetically modified pig.
The World Health Organization approved the Sinopharm COVID-19 vaccine for emergency use.
Johns Hopkins University announced that the number of people who died worldwide due to the COVID-19 pandemic had reached three million.
The US FDA approved the Pfizer COVID-19 vaccine for emergency use.
British Prime Minister Boris Johnson was taken to hospital after testing positive for COVID-19.
The World Health Organization (WHO) confirmed that the spread of COVID-19 was now at a Pandemic stage.
Coronavirus was declared a Public Health Emergency of International Concern by the World Health Organization (WHO).
Justin Bieber posted on Instagram that he has Lyme disease, a bacterial illness spread by ticks.
The World Health Organization announced that 142,000 people died of measles around the world in 2018, nearly 20,000 more than in 2017.
Bernie Sanders suffered a heart attack.
The World Health Organization announced that they would give measles vaccinations to 800,000 children in the Democratic Republic of the Congo.
Transgender became no longer classified as a mental health illness by the World Health Organization.
Using gene therapy, eight babies suffering from ''bubble boy disease" were cured in Memphis, Tennessee.
The first kidney transplant between two persons with HIV occurred in Boston, Massachusetts, US.
Game of Thrones star Emilia Clarke shared her experience of fighting for her life after suffering two brain aneurysms during filming.
Researchers discovered molecules on people's skin that are early warning signs of Parkinson's disease, aided by a woman's nose.
The World Health Organization (WHO) announced that measles cases were at an all-time record high, with 41,000 in the first half of the year alone.
Monsanto became liable to pay out $289 million in damages to a groundsman who got terminal cancer from its 'Roundup' weed killer.
A trial for Huntington's disease procured positive results.
A baby girl named Vanellope Wilkins had her heart successfully put back inside her body.
The World Health Organization estimated that Yemen had over 200,000 cases of cholera.
The Ebola epidemic in Guinea was declared by The World Health Organization.
The World Health Organization ranked Tuberculosis as deadly as HIV in its list of the world's most deadly diseases.
The world's most amazing face transplant took place.
Former President Jimmy Carter had a lesion removed from his liver.
A Spanish nurse became the first person to contract Ebola outside of West Africa.
The World Health Organization announced the Ebola outbreak in West Africa.
A Duke University neuroscientist connected two rat brains together over the internet.
A study was published by the journal Nature saying that scientists had identified four distinct types of breast cancer.
US President Barack Obama received a vaccine jab against the swine flu.
Adriana Iliescu gives birth at the age of 66.
The World Health Organization announced that the SARS outbreak was now contained.
The first draft of the human genome was published in Nature Magazine.
Viagra is approved by the U.S. Food and Drug Administration.
Hong Kong began to slaughter the city's 1.6 million chickens to stop the spread of an influenza strain.
The FDA approved the first chickenpox vaccine.
The first-ever World AIDS day started in effort to raise awareness of the AIDS global epidemic.
7-month-old twins joined at the back of the head were successfully separated.
The discovery of the virus causing AIDS is announced.
A boy born without an immune system, David Vetter, left his bubble isolation for the first time, aged 12, and touched his mother for the first time.
The first artificial heart was successfully implanted.
Pope John Paul II was sent to hospital for 55 days after contracting an infection.
The first cases of AIDS are reported.
Smallpox eradication was certified.
Janet Parker became the last person to die of smallpox in Birmingham, United Kingdom.
The first baby was born after being conceived by in vitro fertilization (IVF).
Doctors Without Borders was founded in Paris by French doctors and journalists.
Denton Cooley implants the first artificial heart.