The full extent of the short- and long-term effects of the coronavirus and thecausing it is still unknown, including and whether it is possible to become infected again. Nor is it clear how governments would respond to a wave of coronavirus infections, although some countries, such as Lebanon and South Korea, have already introduced block orders in areas where the virus appears to be resurfacing.
This story provides an overview to keep you informed of the current discussion. It will be regularly updated in the light of new and changing information from health officials, world leaders and the scientific community, and is not intended as a medical reference.
What defines a & # 39; second wave & # 39; of an illness? Can there be more? In general, a "wave" in a pandemic is a period of increasing disease transmission after an overall decline. While the rate of coronavirus continues to increase in some parts of the US, the number of new infections currently appears to be decreasing across the country. The same mix of upward and downward trends can be seen worldwide, prompting World Health Organization Executive Director Mike Ryan to estimate that we are "in the middle of the first wave." If and when infection rates have declined across the board, then begin to rise again, it will indicate the next or "second wave." The longer the pandemic continues, the more waves are likely to occur.
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A wave can be made from smaller wrinkles or 'peaks'
The coronavirus pandemic has not affected all parts of the country in the same way or at the same time. Cities and statesand that's also how the country is starting to get out, with different areas easing restrictions in stages and at their own pace.
Some Health Experts have warned that the lack of a uniform reopening plan can help promote the spread of the coronavirus and even fuel a second wave when people travel from the worst affected areas to places with far fewer infections. Ali Khan, a former CDC official, said that a second wave could involve many simultaneous, smaller outbreaks that together look more like a single wave.
Peaks in new cases of coronavirus have already been documented in areas emerging from the occlusion. Wisconsin, for example, experienced its greatest increase in new infections and deaths in one day exactly two weeks after the state's Supreme Court overturned the governor's home warrant. Georgia, which was one of the first states to begin lifting lockdown orders, is starting to see gains in new cases after several weeks of plateau.
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When could the second wave of coronavirus strike?
As countries and states begin to ease lock restrictions, health officials around the world are already looking for rising infection rates that may signal a second wave of coronavirus-related diseases. . Most public health experts – including the director of the CDC, Dr. Robert Redfield and Dr. Anthony Fauci, the director of the National Institute of Allergy and Infectious Disease – anticipate the next major revival to occur this fall or winter.  Why then? Flu cases drop in the summer, leading some health experts to hope that COVID-19 cases also decrease as the weather warms. Dr. Amesh Adalja, a pandemic preparedness expert at Johns Hopkins University, told the Los Angeles Times that other coronaviruses do not do well in the summer months because, once outside the body, both the higher temperatures dry them out and the ultraviolet light of sunnier weather affects them.
However, a study published in the Canadian Medical Association Journal provides data suggesting that this particular coronavirus,seems insensitive to temperature differences and is only slightly affected by humidity. An outbreak in the ongoing struggle of Mumbai and Indonesia to curb the virus highlighted how the pandemic is hitting countries in climate zones, including many regions at or near the equator.
It may be that autumn and winter changes may occur as a result of reopenings of economies and people approaching and transmitting the infection again, but that reasoning is pure speculation and not the result of scientific research. We will have to wait to see what really happens.
Could the second wave be worse than the first?
If there is a second wave of coronavirus, the severity of the outbreak would depend on multiple factors, such as how well people keep social distance and how. The may also play a role, in addition to for anyone who tests positive.
For example, a recent study and computer model developed under De Kai, a computer scientist with appointments from both the University of California at Berkeley and Hong Kong University, suggests that if 80% of the population wore face masks in public, coronavirus transmission rates would drop (pdf) to about 8% compared to not wearing masks.