Answer:
HIV (human immunodeficiency virus) causes AIDS (Autoimmune deficiency syndrome) and reduces the ability of body to fight infection.
HIV was first found in 1959 in a man from Democratic Republic of the Congo and then announced as a world pandemic by WHO.
Approximately 37.9 million people were infected with HIV globally in 2018 but the pandemic statistics vary around the world. Sub-Saharan Africa was most infected region from HIV in 2018 where 61% population was infected from HIV/AIDS. In South & South-East Asia, about 12% of all people infected with HIV in 2010.
Now WHO announced HIV as 'global epidemic".
When ingesting a substance, it had its own unique effect on our body, for better or worse. For example, take a greasy food, such as friend fries. It shoots our cholesterol way up, bringing the fat content in our bodies up. Therefore, we truly are what we eat, we eat healthy, we’ll be healthy. We eat unhealthy, we’ll be unhealthy.
Gradual changes in the frequency of diseases over long periods are known as SECULAR TIME TRENDS. For example, the rate of mortality in USA due to coronary heart diseases over a period of time. Onset of puberty in girls is also a secular time trend.
Secular time trend is also referred as Secular Variation and Secular Drift.
Answer:
e. staphylococcal enterotoxin
Explanation:
Staphylococcal enterotoxin is a toxin that is produced by the bacteria Staphylococcus aureus. It is a toxin found inside the gastrointestinal tracts of the human body which is why it is called an enterotoxin and it results in food poisoning when consumed by humans.
Staphylococcal enterotoxin is proteinous in nature and it can be found on dairy products such as milk or cheeses that have been contaminated by Staphylococcus aureus.
After consumption of the contaminated milk or cheeses, the person begins to experience symptoms of nausea, diarrhea as well as vomiting.
Staphylococcal enterotoxin is a very heat stable toxin which means even though you heat up a food contaminated with this toxin, the bacteria may die by the toxins would still remain in the food.
The best way to avoid food poisoning by Staphylococcal enterotoxin is to avoid eating contaminated foods.
