A.R.Siranjeevi /SAT creation

                          Dengue fever Key facts Dengue is a mosquito-borne viral infection. The infection causes flu-like illness, and occasionally develops into a potentially lethal complication called severe dengue. The global incidence of dengue has grown dramatically in recent decades. About half of the world's population is now at risk. Dengue is found in tropical and sub-tropical climates worldwide, mostly in urban and semi-urban areas. Severe dengue is a leading cause of serious illness and death among children in some Asian and Latin American countries. There is no specific treatment for dengue/ severe dengue, but early detection and access to proper medical care lowers fatality rates below 1%. Dengue prevention and control depends on effective vector control measures. Dengue is a mosquito-borne viral disease that has rapidly spread in all regions of WHO in recent years. Dengue virus is tr...

    Cardiopulmonary resuscitation (CPR)     is a lifesaving technique useful in many emergencies, including a heart attack or near drowning, in which someone's breathing or heartbeat has stopped. The American Heart Association recommends that everyone — untrained bystanders and medical personnel alike — begin CPR with chest compressions. It's far better to do something than to do nothing at all if you're fearful that your knowledge or abilities aren't 100 percent complete. Remember, the difference between your doing something and doing nothing could be someone's life. Here's advice from the American Heart Association: Untrained.  If you're not trained in CPR, then provide hands-only CPR. That means uninterrupted chest compressions of 100 to 120 a minute until paramedics arrive (described in more detail below). You don't need to try rescue breathing. Trained and ready to go.  If you're well-trained and confident in your ability, che...

A  lunar eclipse   https://truthmedia-ct.blogspot.com/?m=1 occurs when the  Moon passes directly behind  Earth  and into  its shadow . [1]  This can occur only when the  Sun , Earth, and the Moon are aligned (in  syzygy ) exactly or very closely so, with the  planet  in between. Hence, a lunar eclipse can occur only on the night of a  full moon . The type and length of an  eclipse  depend on the Moon's proximity to  either node  of  its orbit . During a total lunar eclipse, Earth completely blocks direct  sunlight  from reaching the Moon. The only light  reflected  from the lunar surface has been  refracted  by  Earth's atmosphere . This light appears reddish for the same reason that a  sunset  or  sunrise  does: the  Rayleigh scattering  of bluer light. Due to this reddish color, a totally eclipsed Moon is sometimes called a  ...

A  lunar eclipse   https://truthmedia-ct.blogspot.com/?m=1 occurs when the  Moon passes directly behind  Earth  and into  its shadow . [1]  This can occur only when the  Sun , Earth, and the Moon are aligned (in  syzygy ) exactly or very closely so, with the  planet  in between. Hence, a lunar eclipse can occur only on the night of a  full moon . The type and length of an  eclipse  depend on the Moon's proximity to  either node  of  its orbit . During a total lunar eclipse, Earth completely blocks direct  sunlight  from reaching the Moon. The only light  reflected  from the lunar surface has been  refracted  by  Earth's atmosphere . This light appears reddish for the same reason that a  sunset  or  sunrise  does: the  Rayleigh scattering  of bluer light. Due to this reddish color, a totally eclipsed Moon is sometimes called a  ...

SARS (servere actie respiratory https://truthmedia-ct.blogspot.com/?m=1 syndrome) Severe acute respiratory syndrome ( SARS ) is a viral  respiratory disease  of  zoonotic  origin caused by the  SARS coronavirus  (SARS-CoV). It first appeared in China in November 2002 and was identified in February 2003. SARS spread to over 24 countries before it was contained. Since May 2004,  no new cases  have been reported. From November 2002 to July 2003, there were  8,098  cases worldwide and 774 deaths.      * Why do we worry about zoonotic diseases? SARS was the first coronavirus to present severe symptoms in humans. Diseases that pass from animals to humans are called zoonotic diseases. They are relatively rare. The main concern when they first emerge is that they are new strains and also new to humans, so the human body does not yet have immunity. It is often impossible to predict what may happen...