Several human diseases caused by protozoa are transmitted by a variety of arthropod vectors (Table). The vectors are not simply 'flying syringes', but represent a second host for the protozoan parasite.arasites which reside within the blood or internal organs of the host have logistical problems in terms of infecting a new host. In contrast to fecal-oral transmission, where infective stages are excreted into the environment, potential new hosts would not normally come into contact with the parasite.
If you have accumulated enough work credits (typically 40) the earliest you can collect Social Security retirement benefits is 62. At that age, your monthly payment would be about 75% of the amount you would receive by waiting to retire at SSA's full retirement age. Full retirement age:
With Social Security, you never run out of money. Tom Sightings For many of us â people born between 1943 and 1954 â the regular retirement age is 66. You're eligible for Social Security as early as age 62, but you suffer a penalty if you start then.You can also delay taking benefits until 70, and then you get a bonus. Tom Sightings. The penalty for taking Social Security early is around 7 percent a year, and the bonus for delaying is also about 7 percent a year.If your benefit at age 66 is figured at the average of $1,268 a month, then you'll only receive about $1,180 per month if you sign up at age 65.ith Social Security, you never run out of money. Tom Sightings For many of us â people born between 1943 and 1954 â the regular retirement age is 66. You're eligible for Social Security as early as age 62, but you suffer a penalty if you start then.