Why do viruses spread more in winter
[PDF File]Winter 2014/15 Who should have it and why 2015
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viruses as soon as the illness has gone. What about my children? Do they need the . vaccination? If you have a child over six months of age who has one of the . conditions listed on page 4, they should have a flu vaccination. All these children are more likely to become more ill if they catch flu, and it could make their existing condition worse.
[PDF File]COVID-19 - CIDRAP
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more asymptomatic spread, and a higher R0, COVID-19 appears to spread more easily than flu. 2. A higher R0 means more people will need to get infected and become immune before the pandemic can end. 3. Based on the most recent flu pandemics, this outbreak will likely last 18 to 24 months. 4. It likely won’t be halted until 60% to 70%
[PDF File]#19 ch10-1 viruses
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Viral components: Envelope Viruses: Size & Shape • Like bacteria, viruses come in a range of sizes & shapes – though they are all very small, average about 100 nm • Shape is determined by the capsid or envelope, often beautifully symmetric • Enveloped viruses tend to be roughly spherical Phage: more complex structure Polyhedral shapes ...
[PDF File]How and Why Social Distancing Works
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spread of SARS-CoV…CoV-2. And so I know from other respiratory viruses, such like influenza, it is believed that there is more transmission in the winter rather than in the spring or summer because people tend to spend much more time indoors during winter but not because the weather itself has a direct effect.
[PDF File]The WINTER 2020/21 vaccination - Gov
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spread the flu virus in tiny droplets of saliva over a ... well this winter and we do not want them to catch flu. In order ... do I need a vaccination? Yes; other viruses can give you flu-like symptoms, or you may have had flu but because there is more than one type of flu virus you
[PDF File]B ST YOUR IMMUNITY THIS WINTER
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Flu and COVID-19 can both be life-threatening and spread more easily in winter when we are more likely to be indoors or in crowded spaces. That’s why it’s important that eligible people come forward for their flu vaccine and COVID-19 booster. If you catch flu and COVID-19 at the same time, research shows you’re more likely to be seriously ...
[PDF File]Cold Weather Outdoor Play Boosts Immune System!
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the viruses that cause flu and colds are more common in the winter months, the circulated air in closed environments is the main cause of your child getting sick. All of the bacteria, dirt, dander, and other germs simply get recycled through the air vents over and over. The more time you spend inside, the more you are exposed.
[PDF File]Seasonal Variation in Host Susceptibility and Cycles of ...
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by direct spread in a series of chains of transmission from one ill person to another (16). Some evidence suggests that influenza viruses do spread geographically, particularly during pandemics, but whether geographic spread accounts for the patterns observed in annual outbreaks has been questioned (11,17,18). The simultaneous onset of geographi-
[PDF File]Seasonal Flu vs. Pandemic Flu
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B viruses that infect the human respiratory tract. Annual flu epidemics occur among people worldwide. Epidemics of seasonal flu happen every year. Fall and winter is the time for flu in the United States. How do seasonal flu viruses spread? Flu viruses are thought to spread mainly from person to person through droplets made
[PDF File]Climate change and infectious diseases
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3. European expansionism over past five centuries caused transoceanic spread of often lethal infectious diseases. This may be the fourth great transitional period. The spread and increased labil-ity of various infectious diseases, new and old, reflects the impacts of demo-graphic, environmental, technological and other rapid changes in human ...
[DOC File]Still, the authors urge that the 2009 H1N1 virus continue ...
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Officials estimate that more than 1 million Americans have been infected. Worldwide. March/April, 2009 – first detected in Mexico and southern US. August, 2009 – detected in over 200 countries. Predictions for this fall/winter: Southern Hemisphere that are now experiencing their winter flu season.
[DOC File]Instructor Notes, Catastrophe Course Unit 13
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There is some evidence that, in the process of becoming more easily transmittable, viruses tend to become less lethal. Current planning assumes a case fatality rate of somewhere around 2% to 5%. Even at a low rate of 2%, fatalities in the U.S. could be over 600,000.
[DOC File]Temperature Chapter
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You have probably noticed that you are more vulnerable to colds in winter than in summer. Colds are more common when the outside air temperature fluctuates because people's bodies are fatigued by constantly trying to generate energy to keep warm. Viruses that cause the …
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Approximately every 20-40 years, a new strain of the flu virus appears which is very different from the ordinary seasonal flu virus. Because most people do not have immunity to this new strain of flu virus, it can spread to many people, across the world, over a short period of time.
You never forget the flu - media release template
“The flu doesn’t discriminate, and anyone can be affected, that’s why it’s important everyone knows what they can do to help protect others and fight the flu this winter.” “Stopping the spread of flu is as easy as making sure you’re following three simple steps: cough or sneeze into your elbow, wash your hands thoroughly and if ...
Repeat steps one through four with each resource in the ...
Following that, from World Book, the next article is “Bacteria” which will go more into what bacteria is and how there can be good and bad bacteria. Finally, students will then read and listen to, “Why Some People Evade Colds and Others Don’t” which reinforces how germs spread, expands student knowledge about immunity and introduces ...
OHIO Open Library
Influenza is an acute, often severe, upper respiratory tract infection; it usually occurs in the winter months in a “seasonal” outbreak or epidemic; While influenza infects some people “off season,” most of the cases spread rapidly over a period of 2-3 months; during this 2-3 …
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