A person may be a carrier of a disease, such as Streptococcus in the throat, without exhibiting any symptoms. Depending on the disease, the person may or may not be contagious during the incubation period.During clinical latency, an infection is subclinical. With respect to viral infections, in clinical latency the virus is actively replicating. person may be a carrier of a disease, such as Streptococcus in the throat, without exhibiting any symptoms. Depending on the disease, the person may or may not be contagious during the incubation period.
The first commercial deployment in North America of camera phones was in 2002. The Sprint wireless carriers deployed over 1 million camera phone manufactured by Sanyo and launched by the PictureMail infrastructure (Sha-Mail in English) developed and managed by LightSurf.
It took 63 years for the first cell phone to be released to the public in Japan. It was invented by a man named Martin Cooper in 1973 while he was working for Motorola. So now you know when the cell phone was invented. Now letâs look at some interesting facts about the cell phone. Facts about cell phones: 1  The first cell phone released by Motorola was the DynaTec phone. 2  It cost a whopping $3,500 and did not sell particularly well to the general public (I wonder why!). 3  The Nokia Communication was the first mobile phone to enable wireless email and internet connection. 4  It was released in 1996.