On Monday, Pfizer and BioNTech announced in a press release that their vaccine candidate was more than 90 percent effective at preventing Covid-19 infection, based on initial results from their ongoing phase 3 clinical trial. The company expects to have applied for emergency use authorization with the Food and Drug Administration (FDA) by the end of November and could have as many as 50 million doses produces by the end of 2020.
This is tremendous news — and misinformation about it is already circulating on social media. According to research from VineSight, a slew of social Twitter accounts, including those of Donald Trump Jr. and Sen. Ted Cruz, are already questioning the timing of the results' release just days after the presidential election. By midday, tweets pushing that narrative had racked up more than 20,000 shares. The researchers estimate that Donald Trump Jr.'s tweet alone could have been seen by nearly 7 million people.
The dream of bringing a speedy end to the pandemic is a complicated one. Even when a vaccine does win initial FDA authorization in the United States, we should expect a lengthy period of "chaos and confusion," one expert recently told the New York Times. Much of that disarray could play out on social media.
From the possibility of multiple vaccines to regionally distinct distribution plans to still-evolving research, the process of vaccine implementation is already stoking anxiety and misinformation. Since the pandemic began, Facebook, Twitter, and YouTube have faced pressure to combat conspiracy theories about Covid-19 vaccines. When one or more vaccines are ultimately offered to the public, the companies will also need to continue to promote accurate information about ever-evolving public health precautions. And they must act sooner rather than later to grapple with the task of communicating and moderating this next period of the pandemic, according to Jennifer Reich, who has studied vaccine hesitance at the University of Colorado Denver.
"This is not going to be magic," Reich told Recode. "I think that the way the vaccine has been messaged has been like, 'Just wait till we have a vaccine and then we can all go back to life as normal.' That's probably not a realistic expectation."
Public health and social media experts told Recode that social media companies should expect anti-vaccination communities to use social media to capitalize on peoples' understandable concerns about a potential Covid-19 vaccine. At the same time, many will be confused and frustrated at the distribution of the vaccine, and some may be angry when they see others getting a vaccine before they do. That will come amid conspiracy theories and other misinformation that has already spread about potential Covid-19 vaccines.
Basically, it could be a very, very complicated mess.
Top Image Credit: Envato/Amanda Scott
Post by Amanda Scott, NA CEO. Follow her on twitter @tantriclens
Thanks to Heinz V. Hoenen. Follow him on twitter: @HeinzVHoenen

News
Scientists Begin $14.2 Million Project To Decode the Body’s “Hidden Sixth Sense”
An NIH-supported initiative seeks to unravel how the nervous system tracks and regulates the body’s internal organs. How does your brain recognize when it’s time to take a breath, when your blood pressure has [...]
Scientists Discover a New Form of Ice That Shouldn’t Exist
Researchers at the European XFEL and DESY are investigating unusual forms of ice that can exist at room temperature when subjected to extreme pressure. Ice comes in many forms, even when made of nothing but water [...]
Nobel-winning, tiny ‘sponge crystals’ with an astonishing amount of inner space
The 2025 Nobel Prize in chemistry was awarded to Richard Robson, Susumu Kitagawa and Omar Yaghi on Oct. 8, 2025, for the development of metal-organic frameworks, or MOFs, which are tunable crystal structures with extremely [...]
Harnessing Green-Synthesized Nanoparticles for Water Purification
A new review reveals how plant- and microbe-derived nanoparticles can power next-gen water disinfection, delivering cleaner, safer water without the environmental cost of traditional treatments. A recent review published in Nanomaterials highlights the potential of green-synthesized nanomaterials (GSNMs) in [...]
Brainstem damage found to be behind long-lasting effects of severe Covid-19
Damage to the brainstem - the brain's 'control center' - is behind long-lasting physical and psychiatric effects of severe Covid-19 infection, a study suggests. Using ultra-high-resolution scanners that can see the living brain in [...]
CT scan changes over one year predict outcomes in fibrotic lung disease
Researchers at National Jewish Health have shown that subtle increases in lung scarring, detected by an artificial intelligence-based tool on CT scans taken one year apart, are associated with disease progression and survival in [...]
AI Spots Hidden Signs of Disease Before Symptoms Appear
Researchers suggest that examining the inner workings of cells more closely could help physicians detect diseases earlier and more accurately match patients with effective therapies. Researchers at McGill University have created an artificial intelligence tool capable of uncovering [...]
Breakthrough Blood Test Detects Head and Neck Cancer up to 10 Years Before Symptoms
Mass General Brigham’s HPV-DeepSeek test enables much earlier cancer detection through a blood sample, creating a new opportunity for screening HPV-related head and neck cancers. Human papillomavirus (HPV) is responsible for about 70% of [...]
Study of 86 chikungunya outbreaks reveals unpredictability in size and severity
The symptoms come on quickly—acute fever, followed by debilitating joint pain that can last for months. Though rarely fatal, the chikungunya virus, a mosquito-borne illness, can be particularly severe for high-risk individuals, including newborns and older [...]
Tiny Fat Messengers May Link Obesity to Alzheimer’s Plaque Buildup
Summary: A groundbreaking study reveals how obesity may drive Alzheimer’s disease through tiny messengers called extracellular vesicles released from fat tissue. These vesicles carry lipids that alter how quickly amyloid-β plaques form, a hallmark of [...]
Ozone exposure weakens lung function and reshapes the oral microbiome
Scientists reveal that short-term ozone inhalation doesn’t just harm the lungs; it reshapes the microbes in your mouth, with men facing the greatest risks. Ozone is a toxic environmental pollutant with wide-ranging effects on [...]
New study reveals molecular basis of Long COVID brain fog
Even though many years have passed since the start of the COVID-19 pandemic, the effects of infection with SARS-CoV-2 are not completely understood. This is especially true for Long COVID, a chronic condition that [...]
Scientists make huge Parkinson’s breakthrough as they discover ‘protein trigger’
Scientists have, for the first time, directly visualised the protein clusters in the brain believed to trigger Parkinson's disease, bringing them one step closer to potential treatments. Parkinson's is a progressive incurable neurological disorder [...]
Alpha amino acids’ stability may explain their role as early life’s protein building blocks
A new study from the Hebrew University of Jerusalem published in the Proceedings of the National Academy of Sciences sheds light on one of life's greatest mysteries: why biology is based on a very specific set [...]
3D bioprinting advances enable creation of artificial blood vessels with layered structures
To explore possible treatments for various diseases, either animal models or human cell cultures are usually used first; however, animal models do not always mimic human diseases well, and cultures are far removed [...]
Drinking less water daily spikes your stress hormone
Researchers discovered that people who don’t drink enough water react with sharper cortisol spikes during stressful events, explaining why poor hydration is tied to long-term health risks. A recent study in the Journal of Applied [...]