January 5, 1999. Copyright, 1999, Graphic News. All rights reserved FLU BUG YET TO PEAK By Margot Nesdale LONDON, January 5, Graphic News: THE FLU bug sweeping British workplaces clean is yet to fully rear its ugly head. Many Britons have been forced to take to their beds after being struck down with the nasty virus which has left front-line staff battling to hold the fort. Doctors say the voracious bug-called the H3N2 Sydney flu - is set to peak across most of the country next week. More than 45,000 victims were bundled up in their sickbeds over the festive season, according to the national influenza monitoring unit. Hospitals, ambulance services and doctors were struggling to cope with the growing number of patients attacked by the virus. Dr Douglas Fleming, the director of the Birmingham Research Unit of the Royal College of General Practitioners, said however that it was extremely unlikely infection levels would reach epidemic proportions. The current level of infection is 94 cases per 100,000 people each week, a typical rate for this time of year. The last bad flu outbreak was in 1995, when 230 cases per 100,000 were recorded . In 1989, there were 580 cases per 100,000 and a major epidemic in 1969 caused 1,180. Dr Fleming said the bug was likely to hit hardest in north and central Britain next week, with infection rates likely to climb as high as 200 per 100,000. London's infection rates were lagging behind, he said. The figure would have to reach 400 for experts to consider it anything unusual, he said. The strain, first identified in Sydney about three years ago, is spread by sneezing and coughing, and causes fever, muscle and joint pain, headaches, sore throat and a dry cough. While no all-purpose vaccine has been developed to tackle the ever-changing virus doctors recommend patients take paracetamol for pain and increase their fluid intake. However a new missile in the fight against flu, a drug called zanamivir, is undergoing clinical trials in Australia and could eventually be approved for sale. Zanamivir can be inhaled and has shown some initial success, decreasing the duration of symptoms and the rate of complications. However it needs to be given within 30 hours of the onset of symptoms. A second drug being trialled with similar results is GS 4104. Two anti-flu drugs, amantadine and rimantadine, are already on the market but those agents have serious flaws and can cause confusion and other neurological side effects. In 1989 26,000 people died from flu in the UK but the figure dropped to 13,000 in 1993, making an average of about 6,000 per year. Less than half of the "at risk" patients, those aged 75 and over and those with chronic illnesses, were vaccinated last season. In the U.S the total number of working days lost due to flu in 1994 was 69.3 million. And in Australia 4.2 million people out of a population of 18 million risk getting the virus, but only half of them are vaccinated. The worst-ever outbreak of flu was when Spanish Flu swept the world in 1918, killing more than 20 million people, sometimes within hours of the first symptoms appearing. This was followed by epidemics of Asian flu in 1957, which caused 70,000 deaths in the U.S alone, the Hong Kong flu in 1968 and Russian flu in 1977. Public health experts warn that vaccines against any given influenza take about six months to produce - too long to do much good in the face of a fast-moving epidemic. /ENDS. Sources: Royal College of General Practitioners (Birmingham), The Lancet, Scientific American, International Influenza Education Panel