Why Omicron Is So Contagious
According to Dr. Hirt, “First, the Omicron spike protein mutations give the virus a much stronger electric charge which causes a ‘static cling’ effect, binding the virus more tightly to the lining of our nose and mouth like a dryer sheet to a wool sweater. This makes the Omicron variant more contagious, so that it takes only a few viruses to start an infection because the virus is better able to ‘cling’ to our respiratory lining.
Second, our immune systems use a sort of ‘natural’ technology to identify bugs like viruses and bacteria. The ability of the immune system to recognize a COVID virus can be programmed either by a naturally acquired COVID infection or by the COVID vaccines. So, the next time a COVID virus tries to enter our bodies, this ‘viral’ recognition technology helps our immune system rapidly identify COVID and neutralize the threat. Omicron’s multitude of mutations create an effective disguise that can fool the immune system’s ‘viral’ recognition programming. These mutations transform the physical appearance of the virus and allow it to sidestep both natural and vaccine-acquired immunity.”
seek emergency medical care immediately:
- Trouble breathing
What To Read Watch And Listen To About Coronavirus
New Scientist Weeklyfeatures updates and analysis on the latest developments in the covid-19 pandemic. Our podcast sees expert journalists from the magazine discuss the biggest science stories to hit the headlines each week from technology and space, to health and the environment.
The Jumpis a BBC Radio 4 series exploring how viruses can cross from animals into humans to cause pandemics. The first episode examines the origins of the covid-19 pandemic.
Why Is Covid Killing People of Colour?is a BBC documentary, which investigates what the high covid-19 death rates in ethnic minority patients reveal about health inequality in the UK.
Panorama: The Race for a Vaccineis a BBC documentary about the inside story of the development of the Oxford/AstraZeneca vaccine against covid-19.
Race Against the Virus: Hunt for a Vaccine is a Channel 4 documentary which tells the story of the coronavirus pandemic through the eyes of the scientists on the frontline.
The New York Timesis assessing the progress in development of potential drug treatments for covid-19, and ranking them for effectiveness and safety.
Humans of COVID-19is a project highlighting the experiences of key workers on the frontline in the fight against coronavirus in the UK, through social media.
Belly Mujinga: Searching for the Truthis a BBC Panorama investigation of the death of transport worker Belly Mujinga from covid-19, following reports she had been coughed and spat on by a customer at Londons Victoria Station.
Covid Symptoms From Day 1 To Day 10
The initial days between when you are infected, and when you begin to show symptoms are called the incubation period. If you start showing symptoms of COVID-19, make sure to immediately isolate, get tested, and keep a list of people youve seen and places you visited, Dr. Shah says. This will be invaluable should your test come back positive. If you are experiencing symptoms of COVID-19, whether you are vaccinated or not, it is critical that you get tested for COVID-19.
Symptoms can present differently in each and every patient. Dr. Shah provides a timeline of COVID symptoms day by day:
Recommended Reading: Cvs Pcr Test Cost
History Shows Us That Often Just When We Think That We Have Passed The Worst A New Wave Is Lying In Wait And Infections Rise Again
The last thing most of us want to see is any more news about COVID-19. Seriously, enough is enough! Frankly, it is difficult to disagree. We have all reached a level of burnout from coping with the pandemic and the disruptions that have accompanied it and many of us feel like we just cant maintain the vigilance and concern needed to live our lives in a constantly defensive posture. In short, we all need a breather.
The other side of this issue, of course, is that nature is mostly beyond our control and does not always co-operate with our wants or needs. A study of the history of epidemiology shows us that often just when we think that we have passed the worst and stand ready to declare an all clear, a new wave is lying in wait and infections rise again.
The 1918 Spanish Flu pandemic, which is often used as the example against which we compare and contrast the global scale of COVID-19, occurred in three separate waves. The first wave was over quickly and the world was ready to consider the issue over, but just as the illness seemed to have burned itself out, the second, and deadliest wave hit. The pattern repeated itself, and by the time the third wave hit, over 50 million people worldwide had died from the virus.
The medical breakthroughs and education should give us comfort, but we are not there yet. Its been a marathon, not a sprint, but every runner knows that you run hardest when the finish line is in sight and you dont stop until after youve crossed it.
Covid Map: Coronavirus Cases Deaths Vaccinations By Country
Covid-19 is continuing to spread around the world, with nearly 280 million confirmed cases and more than five million deaths across almost 200 countries.
The US, India and Brazil have seen the highest number of confirmed cases, followed by the UK, Russia and Turkey.
Very few places have been left untouched.
Read Also: Cvs Test Results How Long Covid
A New Study Says A Coronavirus Variant That Can Spread Quickly Would Be A Major Problem
A photo of the virus that causes COVID-19. A new study by Harvard University has found that a coronavirus variant that spreads quickly can be worse than one that evades coronavirus vaccines.
NIAID-RML via Associated Press
The study published in the medical journal Cell found that variants that can escape acquired immunity and vaccines can cause a less severe pandemic because they would likely cause breakthrough cases or reinfections, which tend to have mild symptoms.
- Meanwhile, variants that spread quickly can move through susceptible populations, leading to more infections and deaths from the virus.
- Partial immune escape can have severe consequences, but mainly when paired with enhanced transmissibility, the study said. Our findings suggest that variants with enhanced transmissibility have a strong tendency to invade and can significantly worsen an epidemic.
, co-author of the paper, told Newsweek she was surprised by the results. But, she said, transmissibility is critical because it allows the variant to catch up to existing strains, which would then allow it to do a lot of damage.
The worst variant, she said, is one that evades vaccines and can spread quickly.
China Records Over 3200 Covid Cases In A Day The Worst Since The 2020 Outbreak
China on Sunday reported more than 3,200 domestic Covid-19 cases including 1,807 symptomatic ones, the highest in over two years, across 19 provinces, forcing new lockdowns and travel restrictions.
The 1,807 cases for Saturday were more than triple the caseload of 476 for the previous day.
China has locked down its southern business centre of Shenzhen, a city of 17.5 million people, following a spike in Covid-19 cases. Everyone in Shenzhen, a finance and technology centre that neighbours Hong Kong, will undergo three rounds of testing after 66 new cases were reported on Sunday.
All businesses except those that supply food, fuel and other necessities were ordered to close or work from home.
All residential communities have been put under closed management, stores and business have been closed and transportation has been suspended.
The city reported 66 local infections on Sunday, including six silent carriers with the latest outbreak in the city recording a total of 432 infections since February 15.
The nationwide surge in cases in the past few days has health authorities scrambling to control the localised clusters of both Omicron and Delta varieties of the infection.
While Chinas count of Covid-19 cases is far lower than those of many other countries, the sharp surge in numbers could complicate Beijings dynamic-clearance policy to suppress the outbreak as quickly as possible.
Also Check: Cost Of Rapid Test At Cvs
These Are The Most Crucial Days To Watch If You Have Any Covid
Researchers remain confident that the majority of SARS-CoV-2 carriers will not require medical intervention.
However, patients appear to endure the worst the ensuing respiratory disease has to offer by day ten of infection.
Days eight to 12 are when we have a really good idea if someone is going to get better or get worse, said Dr. Charles A. Powell, director of the Mount Sinai-National Jewish Health Respiratory Institute in a statement.The major thing we worry about is a worsening at eight to 12 days an increasing shortness of breath, worsening cough.
The broad 10-day median is consistent irrespective of case severity. Medical professionals can better calculate windows
For older patients, immunocompromised and individuals suffering from conditions like hypertension and diabetes, COVID-19 complications are more likely to begin between days five and ten. For young and otherwise healthy carriers the estimation is closer to days ten and twelve.
A worsening condition will evidence different patterns based on the factors indexed above. For the most part subjects will experience respiratory impairments and all that those entail, though neuropathies, body aches, and even cognitive decline have been reported.
Mild cases tend to improve around two weeks after the onset of symptoms. A timeline following exposure is a little harder to draft because SARS-CoV-2s incubation cycle varies greatly among populations.
Day 1 To Day 7 After Symptom Onset
GettyYes, headache can be an early symptom of COVID-19.
According to NBC News, the first days after symptom onset often present as minor physical complaints slight cough, headache, low-grade fever.
Brigham and Womens Hospital reports that symptom presentation can be extremely varied most common is a non-specific flu-like illness.
Some studies have found that symptoms start to worsen around day 5 for some patients.
Symptoms can vary, but the Centers for Disease Control and Prevention lists these common signs of COVID-19:
- Sore throat
- New loss of taste or smell
In addition, some studies have found gastrointestinal distress in COVID-19 patients. Most people have mild illness and are able to recover at home without medical care. They may not need to be tested. There is no treatment specifically approved for people who have COVID-19, the CDC says.
The WHO lists these symptoms:
Symptoms of COVID-19 are non-specific and the disease presentation can range from no symptoms to severe pneumonia and death. Based on 55924 laboratory confirmed cases, typical signs and symptoms include: fever , dry cough , fatigue , sputum production , shortness of breath , sore throat , headache , myalgia or arthralgia , chills , nausea or vomiting , nasal congestion , diarrhea , and hemoptysis , and conjunctival congestion .
Also Check: How Much Is Rapid Test At Cvs
Daily Confirmed Deaths Per Million People
Why adjust for the size of the population?
Differences in the population size between countries are often large, and the COVID-19 death count in more populous countries tends to be higher. Because of this it can be insightful to know how the number of confirmed deaths in a country compares to the number of people who live there, especially when comparing across countries.
For instance, if 1,000 people died in Iceland, out of a population of about 340,000, that would have a far bigger impact than the same number dying in the United States, with its population of 331 million.1 This difference in impact is clear when comparing deaths per million people of each countrys population in this example it would be roughly 3 deaths/million people in the US compared to a staggering 2,941 deaths/million people in Iceland.
Three tips on how to interact with this map
- You can focus on a particular world region using the dropdown menu to the top-right of the map.
What Else To Watch For And How To Stay Safe
Follow the public health fundamentals and help end this pandemic, no matter where you liveget vaccinated or boosted ASAP if you live in an area with low vaccination rates, wear an N95 face mask, don’t travel, social distance, avoid large crowds, don’t go indoors with people you’re not sheltering with , practice good hand hygiene, and to protect your life and the lives of others, don’t visit any of these 35 Places You’re Most Likely to Catch COVID.
Recommended Reading: Cost Of Cvs Covid Test
Where Are Cases Still High
The number of daily cases is stable or falling in most regions. However, Europe is reporting its highest-ever number of daily cases and there has been a recent rise in cases in North America.
A number of countries are seeing a rapid rise in a new Covid variant, named Omicron by the World Health Organization and categorised as a “variant of concern”.
The WHO says Omicron has now been identified in at least 89 countries – and is spreading significantly faster than the Delta strain.
Early studies suggest that Omicron is more transmissible or better able to evade vaccines but further evidence is needed to confirm these findings.
Asia, which was the centre of the initial outbreak that spread from Wuhan in China in early 2020, has seen cases falling in recent weeks.
In India, where the number of new daily cases has fallen dramatically since May, the official death toll is almost 480,000 and it has recorded about 35 million cases – second only to the US.
The World Health Organization has warned that Europe is once again “at the epicentre” of the Covid pandemic and could see half a million more deaths by February.
The WHO gave this warning before the emergence of the Omicron variant, which, along with the increase in Delta infections, has prompted several European countries to increase the scale of their vaccine and booster campaigns.
The new Omicron variant has also led to the UK and the EU tightening travel restrictions.
The Most Concerning Symptom: Shortness Of Breath
Once symptoms appear, some early signs should be treated with more caution than others.
“I would of course always ask about shortness of breath before anything, because that’s somebody who has to be immediately helped,” Megan Coffee, an infectious-disease clinician who analyzed the Wenzhou data, told Business Insider.
Patients who develop ARDS may need to be put on a ventilator in ICU. Coffee estimated that one in four hospitalized COVID-19 patients wind up on the ICU track. Those who are ultimately discharged, she added, should expect another month of rest, rehabilitation, and recovery.
But viewing coronavirus infections based on averages can hide the fact that the disease often doesn’t progress in a linear fashion.
“Courses can step by step worsen progressively. They can wax and wane, doing well one day, worse the next,” Coffee said. “An 80-year-old man with medical issues can do quite well. Sometimes a 40-year-old woman with no medical issues doesn’t.”
This story was originally published February 21, 2020. It has been updated over time with additional research findings.
Read Also: Cvs Pcr Test For Travel Price
Latest Coronavirus News As Of 11am 4 April
The symptom list has been expanded days after officials ended free universal testing in England
For most of the pandemic, the NHS in England has only recognised three covid-19 symptoms: fever, a new and continuous cough, or a loss of taste or smell which many experts considered too limited.
- A blocked or runny nose
- Loss of appetite
- Nausea or vomiting
This list more closely matches that of the US Centers for Disease Control and Prevention, which recognised many of these symptoms early in the pandemic.
The NHS list stops short of some of the World Health Organizations symptoms, however, which also considers skin rashes, red or irritated eyes, or discolouration of the fingers or toes to be less common signs of infection. Chest pain, confusion, or a loss of speech or mobility can occur in severe cases, according to WHO.
, Tim Spector, lead scientist of the Zoe covid-19 symptom tracker app, said: NHS official Main symptoms of coronavirus have finally changed after 2 years of lobbying and Zoe app user input hurrah!
Last month, Spector said the UKs narrow symptom list was probably contributing to its infection surge.
Many people are no longer isolating when they have symptoms, either because they feel they dont have to anymore or because they or their employers still dont recognise symptoms like runny nose or sore throat as covid, he said.
Other coronavirus news
Weekly And Biweekly Deaths: Where Are Confirmed Deaths Increasing Or Falling
Why is it useful to look at weekly or biweekly changes in deaths?
For all global data sources on the pandemic, daily data does not necessarily refer to deaths on that day but to the deaths reported on that day.
Since reporting can vary significantly from day to day irrespectively of any actual variation of deaths it is helpful to look at changes from week to week. This provides a slightly clearer picture of where the pandemic is accelerating, slowing, or in fact reducing.
The maps shown here provide figures on weekly and biweekly deaths: one set shows the number of deaths per million people in the previous seven or fourteen days the other set shows the growth rate over these periods.
You May Like: How Long Does It Take For Cvs Rapid Test Results
Who Has Vaccinated The Most
Of the 197 countries and territories administering vaccines and publishing rollout data, 67 are high-income nations, 103 are middle-income and 27 low-income.
The map below, using figures collated by Our World in Data – a collaboration between Oxford University and an educational charity – shows the total number of doses given per 100 people, mostly first doses.