Global News tells that a new Ipsos poll suggests there is a growing number of Canadians who are against forcing people to take a Coronavirus COVID-19 vaccine if they don't want to. Ipsos polling done exclusively for Global News shows 59 per cent of Canadians agree COVID-19 vaccinations should be mandatory, which is down 13 points since July. Mike Le Couteur looks at how support is dropping, as the need for a vaccine becomes more critical.
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Currently, there is no evidence that any existing vaccines (for other diseases) will protect against Coronavirus COVID-19. However, scientists are certainly studying whether some existing vaccines (such as the Bacille Calmette-Guérin (BCG) vaccine, which is used to prevent tuberculosis) are also effective for COVID-19. WHO will successfully evaluate evidence from these studies when available.
World Immunization Week (celebrated in the last week of April [24 to 30 April]) aims to promote the use of vaccines to successfully protect people of all ages against disease. Fortunately, immunization saves millions of lives every year and is widely recognized as one of the world's most successful and cost-effective health interventions.
Some day, everyone will have access to a Coronavirus COVID-19 vaccine in Canada. A useful vaccine will be available to everyone. Because of the unprecedented global funding and collaboration, more than 150 vaccine candidates are being researched around the whole world at this time.
The Government of Canada is investing in made-in-Canada research and has already made advanced purchase agreements of many hundreds of millions of doses of the most promising vaccine candidates out there from around the world. This will give Canadians access to safe and effective vaccines as soon as they are ready to use.
It seems that the coronavirus disease does not spread through food. There is currently no evidence to suggest that food is a likely source or route of transmission of the virus. There are currently no reported cases of Coronavirus COVID-19 transmission through food. People are unlikely to be infected with the virus through food.
Masks seem to be effective against the COVID-19 virus. Well-designed and well-fitting masks or face coverings can prevent the spread of your infectious respiratory droplets. They may also help protect you from the infectious respiratory droplets of others.
Coronavirus COVID-19 has a way of spreading around. SARS-CoV-2, the virus that causes COVID-19, spreads from an infected person to others through respiratory droplets and aerosols created when an infected person coughs, sneezes, sings, shouts, or talks. The certain droplets vary in size from large droplets that fall to the ground rapidly (within seconds or minutes) near the infected person, to smaller droplets, sometimes called aerosols, which linger in the air under some circumstances.
The relative infectiousness of droplets of different sizes is not clear. Infectious droplets or aerosols may come into direct contact with the mucous membranes of another person's nose, mouth or eyes, or they may be inhaled into their nose, mouth, airways and lungs. The virus may also spread when a person touches another person (i.e., a handshake) or a surface or an object (also referred to as a fomite) that has the virus on it, and then touches their mouth, nose or eyes with unwashed hands.
Fomites are objects or materials which are likely to carry infection, such as clothes, utensils, and furniture. A fomite (or fomes) is any inanimate object that, when contaminated with or exposed to infectious agents (such as pathogenic bacteria, viruses or fungi), can transfer disease to a new host. In the 21st century, the role of fomites in disease transfer is higher than ever in human history because of the frequent indoor lifestyle.
Epidemiologists are worried about the growing number of microbes resistant to disinfectants or antibiotics (so-called antimicrobial resistance phenomenon).
Think about which of the following is a fomite. Fomites can be: skin cells, hair, clothing, bedding, stethoscopes, neckties, hospital equipment, cups, spoons, pencils, bath faucet handles, toilet flush levers, door knobs, light switches, handrails, elevator buttons, television remote controls, pens, touch screens, common-use phones, keyboards, and computer mice, coffeepot handles, countertops, and any other items that may be frequently touched by different people and infrequently cleaned. Fomite examples help you understand.
Cold sores, hand-foot mouth disease, and diarrhea are some examples of illnesses easily spread by contaminated fomites. The risk of infection by these diseases and others through fomites can be greatly reduced by simply washing one's hands.
Researchers certainly have discovered that smooth (non-porous) surfaces like door knobs transmit bacteria and viruses better than porous materials like paper money because porous, especially fibrous, materials absorb and trap the contagion, making it harder to contract through simple touch. Nonetheless, fomites may include soiled clothes, towels, linens, handkerchiefs, and surgical dressings.
SARS-CoV-2 really was found to be viable on various surfaces from 4 to 72 hours under laboratory conditions. However, fomite transmission of SARS-CoV-2 in real healthcare settings is yet to be determined.
Research has shown that influenza virus was still active on stainless steel 24 hours after contamination. However, on hands it survives only for five minutes, the constant contact with a fomite almost certainly means catching the infection. Transfer efficiency depends not only on surface, but mainly on pathogen type. For example, avian influenza survives on both porous and non-porous materials for 144 hours. Fomite transmission should be reduced.
Contaminated needles are the most common fomite that transmits HIV.
Fomite definition is out there. The history of the word is interesting. The Italian scholar and physician Girolamo Fracastoro appears to have first used the Latin word fomes, meaning "tinder", in this sense in his essay on contagion, De Contagione et Contagiosis Morbis, published in 1546: "By fomes I mean clothes, wooden objects, and things of that sort, which though not themselves corrupted can, nevertheless, preserve the original germs of the contagion and infect by means of these".
What is: fomite vs vector? Fomites are easily distinguished from vectors, which are animate or live organisms, usually limited to invertebrates, which can also transmit disease between individuals.
Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine), derived from the notochord. This includes all animals apart from the subphylum Vertebrata. Familiar examples of invertebrates include arthropods (insects, arachnids, crustaceans, and myriapods), mollusks (chitons, snail, bivalves, squids, and octopuses), annelid (earthworms and leeches), and cnidarians (hydras, jellyfishes, sea anemones, and corals).
The majority of animal species are invertebrates; one estimate puts the figure at 97%.
Some so-called invertebrates, such as the Tunicata and Cephalochordata, are more closely related to vertebrates than to other invertebrates. This makes the invertebrates paraphyletic, so the term has little meaning in taxonomy.
Definition of Paraphyletic (BIOLOGY) - (of a group of organisms) descended from a common evolutionary ancestor or ancestral group, but not including all the descendant groups.
What is subphylum Vertebrata? The subphylum Vertebrata contains all animals that possess backbones, gills, and a central nervous system in at least one phase of development. Vertebrates include amphibians, reptiles, mammals, and birds, as well as the jawless fishes, bony fishes, sharks, and rays.
