flu, known as influenza A and influenza B. Influenza B causes less concern as its effects are usually less serious. Influenza A, however, has the power to change its genetic make-up. Although these genetic changes are rare, they create entirely new strains of flu against which we have no...
Some Facts and Theories about Flu The flu, more properly known as influenza, takes its name from the fact that it is so easily transmitted from person to person (influenza is the Italian word for ’influence’). Usually, contamination occurs through direct contact with secretions from an ...
Look into the IELTS Reading Practice Test 35 With Answers and it has topic : How Mobile Telephony Turned into a Health Scare, Some Facts and Theories about Flu, Changes in International Commerce. Do upgrade your reading skills which can be useful for IEL