In the year 1918, there was a case of flu pandemic that affected about 500 million people worldwide, and it created a death case of about 50 million people worldwide, it was a situation of Spanish flu. When it got to April 2009, researchers found a new strain of H1N1, which was detected first in the United States, the virus would quickly spread around the United States and eventually got to other parts of the flu virus.
Young minds were not immune to the virus yet, older people were more immune to the virus, as they may have had an older strain exposure to H1N1, which has helped to protect them. The new strain then began to affect millions of people worldwide, at least around 150,000 people in the world were affected, and about 80% of the affected people were younger than the age of 65.
In 2010, World Health Organization (WHO) announced in August 2010 that the pandemic was over, but people still got the H1N1 virus, it kept on creating cases of illness, hospitalization, and eventual death. Right before we explore the details of swine influenza in humans, let's explore its effect on the swine itself.
Swine Influenza in Pigs.
Swine influenza is a pig respiratory disease, it is caused by the type A influenza virus that causes outbreaks of influenza in pigs, an outbreak of the swine flu virus would cause a high level of illness in pig herds, but create just a few cases of deaths. While the virus can circulate year in and out, major outbreaks happen during the late fall and winter months. The main swine flu viruses that have circulated in U.S pigs over the years are; swine triple reassortant (tr) H1N1, trH3N2, and trH1N2.
It is a highly contagious viral pig infection, that spreads very fast amongst swine, even if all affected pigs may not show clinical signs, it doesn't mean they are not infected. Even though the influenza virus majorly affects pigs, it can also be found in other species like; ducks, humans, and turkeys. When a pig is infected, it may begin to excrete swine influenza viruses within 24 hours of infection, and it would shed the virus for 7-10 days.
There are available vaccines for pigs to prevent them from getting affected in the future.
When pigs begin to have swine flu, they start to have symptoms like; a runny nose, depression, low appetite, coughing, red and runny eyes, alongside difficulty breathing.
Swine Influenza in Humans.
The swine flu virus in humans spreads from one person to another, in a similar manner to what happens in swine, when a person coughs or sneezes, the droplets would go into the air. Any human can get the infection when there is inhalation of the virus, the virus could also be gotten through the touch of a contaminated surface, and then using the same hand to touch the nose, eyes, or mouth.
Contrary to what some people believe, the H1N1 virus cannot be gotten through the consumption of pork.
When swine flu (H1N1) affects humans, the symptoms are usually similar to that of a regular flu, the symptoms could start from 3-5 days after there has been an exposure. The symptoms include; Fatigue, chills, fever, cough, sore throat, muscle or body aches, and headaches.
The symptoms in babies and children may be quite different from what we have in adults, babies may experience; difficulty breathing, inability to drink sufficient fluid, confusion, fever with rash, and difficulty waking up.
Humans with swine flu(H1N1) who are normally healthy individuals, do not need any form of special treatments or medications, they will only be required to stay at home, get lots of rest, consume plenty of fluids, and in some cases take pain killers to help relieve the pains and aches felt. The best way for humans to prevent flu is to consistently get an annual flu vaccine, this vaccine has helped in the prevention of swine flu since 2010. Asides from vaccination, these safety options should also be adequately practiced;
Always wash your hands with water and soap- hygiene is a necessity.
Avoid contact with the sick, and remember to stay at home when you feel sick.
Ensure not to share items like cups, plates, and cooking utensils with strangers.
References.
https://www.cdc.gov/flu/swineflu/keyfacts_pigs.htm
https://www.cdc.gov/flu/swineflu/index.htm
https://www.woah.org/en/disease/swine-influenza/
https://my.clevelandclinic.org/health/diseases/23928-swine-flu-h1n1