When the mosquito sucks blood the next time, it injects its saliva into the wound, and thus the virus reaches the blood of the bitten person.

When a female reproduces without such parasitic meals, she is said to practise autogenous reproduction, as in Toxorhynchites ; otherwise, the reproduction may be termed anautogenous, as occurs in mosquito species that serve as disease vectors, particularly Anopheles and some of the most important disease vectors in the genus Aedes.

When the mosquito drinks a sugar solution, it is directed to a crop.

When a mosquito carrying dengue virus bites a person, the virus enters the skin together with the mosquito's saliva.

When they arrived in St. Louis it was said that the settlers were covered with mosquito bites and very nearly approaching starvation.

When the mosquito vector has its next blood meal, W. bancrofti is egested via the mosquito ’ s proboscis into the blood stream of the new human host.

When the United States took over the wide Canal Zone and resumed building the canal on 4 May 1904 almost two years were spent in infra-structure preparation, mosquito abatement ( the newly discovered vector spreading Yellow fever and Malaria ), Panama Railroad improvements and planning before the work got up to full speed.

When he wasn ’ t trapping rats and squirrels in California, Blue directed mosquito eradication efforts to control yellow fever in New Orleans ( 1905 ), at the Jamestown Exposition ( 1907 ), and in Honolulu ( 1911 ), to help Hawaii prepare for traffic to follow the opening of the new Panama Canal.

When ingested by a mosquito, the microfilariae undergo a series of molts to the infective third larval stage, and then migrate to the salivary glands of the mosquito, where they wait to infect another host.

When Merritt Island was flooded with the goal of reducing the mosquito population around Kennedy Space Center, the sparrows ' nesting grounds were devastated, and their numbers plummeted.

When a female Anopheles mosquito bites an infected person, gametocytes and other stages of the parasite are transferred to the stomach where further development occur.

When the mosquito bites a healthy person, thousands of sporozoites are infected into the blood along with the saliva and the cycle starts again.

When the Anopheles mosquito takes a blood meal from an infected individual, gametocytes are ingested from the infected person.

When Fred Powell's brother-in-law, Charlie Keane, moved into the dead man's home, the anonymous letter writer took no chances on Charlie taking up where Fred had left off and wasted no time on a first notice:

When his head came down, Curt grabbed him by the hair and catapulted him head first into the wall.

When I mentioned that for my first long voyage I did not even have the money for the return fare, but had trusted to luck that I would earn a sufficient amount, the young people looked at me doubtingly.

When I take over Taliesin, the first thing I'll do is fire you ''.

When he was fifteen John H. Mercer turned out his first song, a jazzy little thing he called `` Sister Susie, Strut Your Stuff ''.

When they were first written, there was evidently no thought of their being published, and those which refer to the writer's love for Mrs. Meynell particularly have the ring of truth.

When I first came across Samuel Johnson's pronouncement, `` the remedy for the ills of life is palliative rather than radical '', it seemed to me to sum up the profoundest of political and social truths.

When this second dilemma first became obvious -- during the mid to late '50's -- the United States appeared to have three choices.

When Napoleon's ship had borne him to Elba, French wines had started to cross the Channel, the first shipments in a dozen war-ridden years, but the supplies had not yet reached rural hostelries where the sweet wines of the Spanish peninsula still ruled.

When they first married he had been working in the fields all day, and she would get in the car and drive to wherever he was working, to take him a fresh hot meal.

When the first sprinkling of green appears I remove the board.

When solving an equation that involves division as well as other steps, do all the division steps first to reduce those parts of the equation to their numerical value.

When you first acquire a pool, we earnestly recommend -- for your own mental health -- a good long chat with your insurance agent.

When these groups were first formed many prominent and accomplished decorators could not have had the advantage of school training since interior design courses were rare and undeveloped during their youth.

When it comes to rate of early growth, the Indian python leads with a figure of about 3 feet 6 inches per year for the first two years, more or less.

When 1 ml of conjugate was passed through a column ( Af ), the first and second milliliter fractions collected were the most specific and gave no nonspecific staining in some experiments, and very little in others.

When we examine what each master says was his first collage we see that much the same thing happens in each.

When the chance came, they first eliminated cold cereal once a week, then gradually converted to hot fresh-ground cereal every day.

When Felix first opened the door on it, all these shades were tightly drawn and the whole studio was as dark as night.

When he finally got the coughing under control, he realized that Pete ( all he gave was his first name ) was still waiting for an answer -- he didn't even seem to wink as he continued to stare.

When the husband drops the case and returns to his wife, both seem sorry they brought the matter up in the first place.

When he at last did go to his room, he couldn't sleep and instead paced up and down before his little image of Acala, thinking first of Charlotte's tale of the man at Ryusenji, then of his biwa and the invisible Pacific waters.

When first informed he disbelieved the crow and turned all crows black ( where they were previously white ) as a punishment for spreading untruths.

When they were first occupied, the present-day islands including Milos with its important obsidian production were probably still connected to the mainland.

Even his old literary home, Punch, where the When We Were Very Young verses had first appeared, was ultimately to reject him, as Christopher Milne details in his autobiography The Enchanted Places, although Methuen continued to publish whatever Milne wrote, including the long poem ' The Norman Church ' and an assembly of articles entitled Year In, Year Out ( which Milne likened to a benefit night for the author ).

When the anchor lands on the bottom, it will generally fall over with the arms parallel to the seabed.

When the secularization of church lands took place ( 1802 ) the diocese covered and had a population of 207, 000.

When the plane lands at Marseille, a French Gendarmerie assault team boards the aircraft and kills the hijackers.

When Francis took the title in 1804, the Habsburg lands as a whole were dubbed the Kaisertum Österreich.

When his will was enforced, Rome responded by violently seizing the tribe's lands in full.

When the Roman Empire was divided into eastern and western halves in AD 395, Illyria east of the Drinus River ( Drina between Bosnia and Serbia ), including the lands that now form Albania, were administered by the Eastern Empire but were ecclesiastically dependent on Rome.

When Jackson became president, he agreed that the Indians should be encouraged, but not forced, to exchange eastern lands for western lands.

When Henry III and the King of France came to terms over the Duchy of Normandy, all lands except the Channel Islands recognised the suzerainty of the King of France.

When Rousseau was 10, his father, an avid hunter, got into a legal quarrel with a wealthy landowner on whose lands he had been caught trespassing.

When John still refused to come, Philip declared John in breach of his feudal responsibilities, reassigned all of John's lands that fell under the French crown to Arthur – with the exception of Normandy, which he took back for himself – and began a fresh war against John.

When relay sowing, if the last seed during sowing lands in an occupied hole, all the contents of that hole, including the last sown seed, are immediately resown from the hole.

When the plane lands in Malta, Egyptian commandos storm the aircraft, but 60 people die in the raid.

When the country under the fascist rule of Prime Minister Plaek Phibunsongkhram decided to invade a weakened France, under the Vichy regime ( after the Nazi occupation of Paris ) to return lost lands and settle disputed territories.

When the Senate refused to grant Caesar's veterans lands and a further governorship of Gaul, he turned to the tribunes with his demands and got them.

When in Normandy, William acknowledged that he owed fealty to the French king, but in England no such acknowledgement was made – further evidence that the various parts of William's lands were considered separate.

When the rocket lands, the traveler tells them that the Earth has been destroyed — including all of the horrific momentos of racial discrimination ( such as trees used for lynching blacks ).

When they refused he deprived them of their titles and lands, granting them to his allies.

When pollen lands on a compatible pistil or female cone ( i. e., when pollination has occurred ), it germinates and produces a pollen tube that transfers the sperm to the ovule ( or female gametophyte ).

When the emperor Louis divided his dominions between his sons in 817, Louis received Bavaria and the neighbouring lands but did not undertake the governing of such until 825, when he became involved in wars with the Wends and Sorbs on his eastern frontier.

When they were later permitted to return ( in some cases not until 1799 ), it was often to find that their lands and homes had been confiscated.

When the Institute was dissolved, the trustees decided to lay out a townsite on the Institute lands.

When the Republican Party came to power in 1860 they promoted a free land policy — notably the Homestead Act of 1862, coupled with railroad land grants that opened cheap ( but not free ) lands for settlers.

When a player's counter lands on a square, the player answers a question according to the color of the square, which corresponds to one of the six categories.