Like the other influenza viruses, it was mostly spread from human to human. They are primarily spread through respiratory droplets from sneezes and coughs, picking the virus up from a surface that someone with the flu had touched and other direct contact with infected people or things they had handled.
The Spanish Flu was unusual in that it killed more healthy young adults than infants and the elderly, as is seen with other flu viruses. Spanish Flu killed by creating cytokine storms in it's victim's immune systems resulting in consolidation ofthe lungs.This strain of theflu was also known to cause massive hemorrhaging of the mucous membranes.
It arose during a time of World War and was spread by troop movements around the globe and local responses to the war effort. There is some conjecture that widespread use of aspirin, which we now know causes Reye's Syndrome, may have increased the fatality rate amongst those infected.
Pigs spread the original swine flu virus among themselves. The mutation, known as the 2009 Swine Flu (Influenza A, Novel H1N1 virus), that is now a human virus is spread by humans. It is a mutation of the swine flu and avian (bird flu) that has combined with a human virus.
A zoonosis is an animal disease, such as rabies, which can be passed to humans.
It usually is transmitted directly to humans from birds in their saliva or feces. It is very rare to begin with in humans and only rarely is transmitted from human to human. Birds transmit it to each other in feces and saliva and direct contact.
Yes, some strains are highly contagious in humans, such as the H1N1/09 pandemic Swine Flu. Others, like the Avian (bird) flu, are not easily transmitted from person to person. Transmission of the bird flu from human to human is extremely rare.
No, Bird Flu also known as Avian Influenza,or Avian Flu can't be spread to humans. Bird flu refers to strains of influenza that primarily affect wild and domesticated birds. In the late 1990s, a new strain of bird flu arose which was unusually severe (highly pathogenic), resulting in the deaths of hundreds of millions of birds, including poultry. Although bird flu is contagious and spreads easily among birds, it is uncommon for it to be transmitted to humans.
"Swine flu" is a viral infection of swine (pigs). There is evidence that this virus is the same that infected humans in the 1918 pandemic. It has been labeled the N1H1. There has been controversy that the flu now is a variant of this 1918 flu. We are not sure where it started: pigs or humans? "Swine flu" H1N1 virus produces similar influenza-like illnesses. Symptoms include fever, cough, sore throat, body aches, headache, chills and fatigue and some diarrhea and vomiting. The present H1N1 virus is not zoonotic swine flu, as it is not transmitted from pigs to humans, but from person to person.
That refers to Type A influenza viruses that are common with our seasonal flu. There are two flu types that humans get: Type A and Type B. The flu vaccine contains some of both types to prevent infections from them. All of the flu pandemics we have had over history have been caused by Type A flu viruses, they are typically very easily transmitted from person to person. Don't forget to get a flu shot ASAP now that it is October - the start of the Northern Hemisphere flu season.
yes especially in mosquitoes such as malaria but not simple things such as the flu or a common cold
Swine flu was first discovered in people working with pigs. Flu is a disease that is transmitted in various forms among people, pigs, and birds. Sometimes bird flu is transmitted to pigs, and sometime pig flu is transmitted to people. What actually happens is that a pig has pig flu and catches bird flu. A chromosome from the bird flu gets mixed with the pig flu and changes it to a different type of flu. Then a person with human flu catches pig flu. A chromosome with pig and perhaps bird flu mixes with the human flu. The flu is mainly human flu but contains pig and bird flu chromosomes. It got the name swine flu because people working with pigs caught it first. Because it has the pig and bird chromosomes, people with resistance to human flu, have less resistance to swine flu.
Humans and birds can die from avian "bird" flu. Up to 60% of humans who get avian flu can die.
Yes
That refers to Type A influenza viruses that are common with our seasonal flu. There are two flu types that humans get: Type A and Type B. The flu vaccine contains some of both types to prevent infections from them. All of the flu pandemics we have had over history have been caused by Type A flu viruses, they are typically very easily transmitted from person to person. Don't forget to get a flu shot ASAP now that it is October - the start of the Northern Hemisphere flu season.