In this form, the signs of the disease appear and begin to grow worse, with no periods of disappearance.

VOA: special.2009.01.06

These comedies, with plenty of songs, were a popular form of entertainment in the nineteen twenties and nineteen thirties.

VOA: special.2009.02.15

Frank Ruhli says studies like this can prove useful in the fight against H1N1, another form of the influenza virus.

VOA: special.2010.06.29

You can usually find good clay in low areas of islands or land, especially if volcanoes helped form the land.

VOA: special.2009.09.14

The census form asks ten questions, including the number of people living in each house, their ethnic group and race.

VOA: special.2010.05.07

"Not everyone is Christian. But I would hope that most people who celebrate Christmas in any form understand its origins.

VOA: special.2009.12.21

Four years ago, the labor agency estimated that more than twelve million people were in some form of forced labor.

VOA: special.2009.06.08

Once the clay dries, the glassmaker dips the form in a container of hot liquid glass until it is covered.

VOA: special.2009.09.16

Each side of these devices blocks a set of images that appear in a different form of polarized light.

VOA: special.2010.01.26

In March, the government ordered Chrysler to cut costs and form an alliance with Italian carmaker Fiat by April thirtieth.

VOA: special.2009.05.01

Medical workers in Haiti are now trying to spread the message not to use river water without some form of purification.

VOA: special.2010.11.10

Vaudeville was the most popular form of show business in the United States in the early nineteen hundreds.

VOA: special.2009.10.11

European Union officials say they will form a team of experts to investigate non-Islamist threats in Scandinavian countries.

VOA: special.2011.07.30

There are fundamental and relatable relationships, broken families in some form,often friendships that are really critical and important."

VOA: special.2011.06.20