One is that the Chinese have the complete DNA sequence of this new virus by January 7th. A week later (Jan 13 - 15), a bunch of Chinese biotech companies released the PCR test kits for the virus. These test kits are being mass-produced in China. So now, all the countries have positive test kits with which to positively identify the virus. This will lead to an explosion of new identifications.
Secondly, based on current information, this new virus is less dangerous than SARS. SARS had a 11% case fatality rate. This new one has so far scored 3 fatalities out of 200+ cases. All 3 fatality cases were on severely health-compromised individuals. Three positively-identified cases in foreign countries (Japan, South Korea, Thailand) are on Chinese tourists who came directly from Wuhan. Just to give you a scale for comparison: most flu strains have case fatality rate (CFR) of 0.1 - 2.5%. The Avian Flu H5N1 that caused a huge scare in 2008 has a CFR of 60%. Ebola 90%. So this new virus is a bit worse than your seasonal flu, but nowhere near the top of the list.
Thirdly, and this is the bad part: we still don’t know the original carrier, and there’s no specific treatment. Isolation to prevent further infection, and then treat it like a flu, that’s it. Basically you still get the “bed rest and drink a lot of water” treatment, except this time you get the additional advice of “don’t go anywhere!” The WHO has the funniest advice, which is “if you feel sick, go see a doctor”. LOL. Novel Coronavirus – China The original SARS was caused by a mutation in cave bats, who bit a wild palm civet, which then was sold in wet market in Guangdong. This new one, we don’t know from what, but it also started from a wet market. If this is from bat, or wild palm civet, or wild bamboo rat.http://wjw.wuhan.gov.cn/front/web/list2nd/no/710
(Use Google Translate to read).