The rules for Covid-19 and its variants change as there are many unknown variables including the vaccine, short and long term effects, and more. An end-time pandemic continues until the end - as anger, frustration, speculation, anxiety and fear continue. Covid in any form seems to have consciousness and an agenda of its own. It behaves like artificial intelligence.

Coronavirus disease 2019 (COVID-19) is a contagious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first known case was identified in Wuhan, China, in December 2019. The disease has since spread worldwide, leading to an ongoing pandemic.

Symptoms of COVID-19 are variable, but often include fever, cough, headache, fatigue, breathing difficulties, loss of smell, and loss of taste. Symptoms may begin one to fourteen days after exposure to the virus. At least a third of people who are infected do not develop noticeable symptoms. Read more

'Extinct' Coronaviruses Still Thrive in North America, Just Not in Humans   Science Alert - February 7, 2023
Variations in the SARS-CoV-2 virus that have not been detected in human beings for some time are still going strong in animal populations - specifically, in the white-tailed deer (Odocoileus virginianus) roaming across the state of New York in the US.

Examining COVID-19's long-term effects on the innate immune system   Medical Express - January 23, 2023
Our immune system has two parts: the innate immune system and the adaptive immune system. The reaction of the innate system is quick but unspecific. The adaptive, specific, immune system is activated later, when there is an infection, and learns to attack viruses and bacteria that the body has encountered. The specific immune system also functions as a memory, so that the infection can be beaten much quicker the next time we encounter the same pathogen. In this study, the researchers have taken a closer look at the innate immune system, which is necessary for the body to organize any specific immune defense at all.

COVID Autopsies Reveal The Virus Spreading Through The 'Entire Body'   Science Alert - January 9, 2023
COVID-19 is defined as a respiratory infection, but the effects of the novel coronavirus are certainly not confined to any one organ. Dozens of recent autopsies show persistent evidence of SARS-CoV-2 throughout the body, including in the lungs, the heart, the spleen, the kidneys, the liver, the colon, the thorax, muscles, nerves, the reproductive tract, the eye, and the brain.

Study identifies four major subtypes of long COVID   Medical Express - January 4, 2023
Of the four major patterns detected, one featured heart and kidney problems, and included a relatively high proportion of patients infected in the first few months of the pandemic in the U.S. Another pattern included respiratory problems, anxiety, sleep disorders and other symptoms including headache and chest pain; nearly two-thirds of the patients with this pattern were women.

CDC reports a new strain of omicron taking over in the U.S. About 40% of confirmed U.S. Covid cases are caused by the XBB.1.5 strain, up from 20% a week ago   NBC - January 2, 2023

A new version of omicron has taken hold in the U.S., according to the most recent data from the Centers for Disease Control and Prevention. The subvariant of omicron, named XBB.1.5, has raised concerns about another potential wave of Covid cases following the busy holiday travel season.

Scientists find key reason why loss of smell occurs in long COVID-19. The inflammatory mechanism could also help explain other long COVID-19 symptoms   Science Daily - December 21, 2022
The reason some people fail to recover their sense of smell after COVID-19 is linked to an ongoing immune assault on olfactory nerve cells and an associated decline in the number of those cells, scientists report. While focusing on the loss smell, the finding also sheds light on the possible underlying causes of other long COVID-19 symptoms - including generalized fatigue, shortness of breath, and brain fog - that might be triggered by similar biological mechanisms.

While the World Health Organization hopes COVID-19 will soon no longer be considered a public health emergency, it has warned the virus itself is here to stay. Three years after the first case was identified in China in December 2019, experts say the world must learn the lessons of this pandemic to prepare for potential future outbreaks.   Medical Express - December 16, 2022
Around 90 percent of the global population now have some level of immunity against COVID, either through vaccination or previous infection, the WHO estimates.

Loss of smell following COVID linked to a person's immune reaction to the infection   Medical Express - December 15, 2022

Researchers studied blood samples of 306 people who had donated blood for study after recovering from a COVID-19 infection. In comparing the antibody levels with other data provided by the donors and their doctors, the researchers determined that those people who had higher antibody levels tended to be the same people who had reported losing their sense of smell or taste. They found that such patients were twice as likely to lose one or the other sense as those who did not have higher-than-average levels of antibodies in their blood.

Patients with PTSD are less likely to survive COVID than those without   Medical Express - November 27, 2022
A new study shows that patients with COVID-19 who also had post-traumatic stress disorder (PTSD) were more likely to die or be hospitalized than those without a psychiatric disorder. For patients with other mental illnesses, the risks were substantially higher.

Research sheds new light on long COVID conditions   Medical Express - October 13, 2022
Most people who get COVID-19 recover within a few weeks. But some people - even those who had mild versions of the disease - have symptoms that last weeks or months after an initial COVID infection. These ongoing health problems, called post-COVID conditions (PCC), post-COVID-19 syndrome, long COVID-19, and post-acute sequelae of SARS COV-2 infection (PASC), can decrease quality of life for patients and increase the burden of disease on health systems. As more patients suffer from long COVID, it's increasingly important to define the symptoms associated with long COVID for effective diagnosis and treatment of the disease.