Statistics show that H1N1 and H3N2 swine flu viruses, which were first reported in 1930 are rampant among swine populations world-over. Over 50% of pigs tested in the US, and 25% of pigs tested worldwide have shown antibody evidence of infection with the flu. This calls for necessary legislation to be put in place and to be enforced to tackle the disease from the origin; the pigs pen.
Moreover since vaccines for H3N2 virus in pigs are available, the legislation should enforce the vaccination and monitor it strictly before cases are reported in humans.
History has it that it is easier to deal with any outbreak, as long as it has not affected human beings. Unlike animals, it is not practical to curtail human mobility, thus once humans are infected, any outbreak assumes a new level of complexity in terms of geographical spread. This could be the reason why cases of the swine flu have been reported in North America, South America, New Zealand and France amongst other countries.
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