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Sexually transmitted infections (STIs), also referred to as sexually transmitted diseases (STDs), are infections that are commonly spread by sexual activity, especially vaginal intercourse, anal sex and oral sex. [1] [2] The most prevalent STIs may be carried by a significant fraction of the human population.
The UK singles chart was first compiled in 1969. However, the records and statistics listed here date back to 1952 because the Official Charts Company counts a selected period of the New Musical Express chart (only from 1952 to 1960) and the Record Retailer chart from 1960 to 1969 as predecessors for the period prior to 11 February 1969, where multiples of competing charts coexisted side by side.
[7] [8] The term sexually transmitted infection is generally preferred over sexually transmitted disease or venereal disease, as it includes cases with no symptomatic disease. [9] Symptoms and signs of STIs may include vaginal discharge, penile discharge, ulcers on or around the genitals, and pelvic pain. [1] Some STIs can cause infertility. [1]
In men, discharge with or without burning occurs in half of all cases and is the most common symptom of the infection. [22] This pain is caused by a narrowing and stiffening of the urethral lumen. [23] The most common medical complication of gonorrhea in men is inflammation of the epididymis. [21]
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Nearly 1 in 3 men have at least one type of HPV. But the burden of screening for this widespread STI is on women. Experts explain why.
Common source outbreak of Hepatitis A in Nov-Dec 1978. This epidemic curve shows a presumed first case, known as the index case on November 6, 1978. 4 days later, there was a steep increase in cases, followed by the curve tapering down to zero. Some cases were food handlers, and some secondary cases.
The Beatles have the most No. 1 singles in the UK, with 18 – with only Elvis Presley in the US having more (21), according to Official Charts. For more CNN news and newsletters create an account ...